Area Formulas (Perimeter & Circumference & Pytho too)

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Last updated 2:42 AM on 5/24/26
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11 Terms

1
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Formula for area of a square?

A = l²

2
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Formula for area of a rectangled?

A = lw

3
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Formula for area of a parallelogram?

A = bh

4
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Formula for area of a triangle?

A = ½ bh

5
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Formula for the area of a trapezoid?

A = ½ (b1 + b2 )h

6
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Formula for area of a rhombus?

A = ½ (d1 * d2)

7
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Formula for area of a circle?

A = (3.14) r²

8
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Formula for area of an eclipse?

A = (3.14)ab

9
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How do you find the perimeter of a polygon?

Add all the sides of a shape

10
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How do you find the circumference (distance around a circle)?

C = 2 (3.14) r

11
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What is the pythagorean theorem

a² + b² = c²