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Update index.html
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index.html

Lines changed: 30 additions & 29 deletions
Original file line numberDiff line numberDiff line change
@@ -3564,7 +3564,6 @@ <h6 style="font-size:160%;margin:7px;">Area of a regular polygon</h6>
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<mrow>
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<mi>A</mi>
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<mo>=</mo>
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<mrow>
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<mfrac>
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<mi>edge</mi>
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<mn>2</mn>
@@ -3591,8 +3590,16 @@ <h6 style="font-size:160%;margin:7px;">Area of a regular polygon</h6>
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</mrow>
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</msqrt>
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</mrow>
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<mo>=</mo>
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</math>
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<br>
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<br>
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<p style="margin:12px;">Simplifying:
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</p>
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<br>
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<math style="margin:12px;" xmlns="http://www.w3.org/1998/Math/MathML">
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<mrow>
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<mi>A</mi>
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<mo>=</mo>
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<mfrac>
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<mi>edge</mi>
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<mn>2</mn>
@@ -3617,11 +3624,16 @@ <h6 style="font-size:160%;margin:7px;">Area of a regular polygon</h6>
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</mrow>
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</msqrt>
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</mrow>
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<mo>=</mo>
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</math>
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<br>
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<br>
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<mo>=</mo>
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<p style="margin:12px;">Simplifying further:
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</p>
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<br>
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<math style="margin:12px;" xmlns="http://www.w3.org/1998/Math/MathML">
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<mrow>
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<mi>A</mi>
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<mo>=</mo>
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<mfrac>
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<mi>edge</mi>
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<mn>2</mn>
@@ -3641,8 +3653,16 @@ <h6 style="font-size:160%;margin:7px;">Area of a regular polygon</h6>
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</mrow>
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</msqrt>
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</mrow>
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<mo>=</mo>
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</math>
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<br>
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<br>
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<p style="margin:12px;">Simplifying further:
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</p>
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<br>
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<math style="margin:12px;" xmlns="http://www.w3.org/1998/Math/MathML">
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<mrow>
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<mi>A</mi>
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<mo>=</mo>
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<mfrac>
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<mi>edge</mi>
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<mn>2</mn>
@@ -3656,7 +3676,6 @@ <h6 style="font-size:160%;margin:7px;">Area of a regular polygon</h6>
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</mrow>
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<mn>4</mn>
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</mfrac>
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</mrow>
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</mrow>
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</math>
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<br>
@@ -3671,6 +3690,7 @@ <h6 style="font-size:160%;margin:7px;">Area of a regular polygon</h6>
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<msqrt>
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<mrow>
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<msup>
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<mo>(</mo>
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<mrow>
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<mfrac>
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<mrow>
@@ -3683,9 +3703,11 @@ <h6 style="font-size:160%;margin:7px;">Area of a regular polygon</h6>
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<mn>2</mn>
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</mrow>
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<mn>2</mn>
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<mo>)</mo>
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</msup>
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<msup>
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<mo>(</mo>
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@@ -3698,33 +3720,12 @@ <h6 style="font-size:160%;margin:7px;">Area of a regular polygon</h6>
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<mn>6</mn>
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</mrow>
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<mn>2</mn>
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<mo>)</mo>
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</msup>
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</mrow>
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</msqrt>
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</mrow>
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<msqrt>
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<msup>
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<mfrac>
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<mi>edge</mi>
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<mo>×</mo>
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<msqrt>
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<mn>3</mn>
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</msqrt>
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</mrow>
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<mn>2</mn>
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<mn>2</mn>
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</mrow>
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</math>
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<p>
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The height of the tetrahedron equals √(( edge × √(3) / 2 )^2 − ( ( edge × √(3) / 2 ) / 3 )^2 ) =

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