Area of Rectangles and Triangles

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What is the formula to find the area of a rectangle?

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula to find the area of a triangle?

Back

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CCSS.6.G.A.1

Front

If a rectangle has a length of 8 inches and a width of 4 inches, what is its area?

Back

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

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If a rectangle has a length of 15 inches and a width of 20 inches, what is its area?

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has a length of 9 inches and a width of 8 inches, what is its area?

Back

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a triangle has a base of 10 inches and a height of 6 inches, what is its area?

Back

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CCSS.6.G.A.1

Front

What is the area of a rectangle with a length of 12 inches and a width of 5 inches?

Back

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CCSS.3.MD.C.7B

CCSS.4.MD.A.3

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What does 'area' mean in geometry?

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Area is the amount of space inside a two-dimensional shape, measured in square units.

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What is the unit of measurement for area?

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The unit of measurement for area is typically square units, such as square inches (in²), square feet (ft²), or square meters (m²).

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CCSS.3.MD.C.6

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How do you convert square inches to square feet?

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To convert square inches to square feet, divide the number of square inches by 144, since there are 144 square inches in a square foot.

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CCSS.3.MD.C.5A