Area of shapes

Front

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

Back

Area = π × r², where r is the radius.

Tags

CCSS.7.G.B.4

Front

If the radius of a circle is 3 cm, what is its area?

Back

Area = π × (3 cm)² = 28.26 cm² (approximately).

Tags

CCSS.7.G.B.4

Front

What does a diameter represent in a circle?

Back

The diameter is twice the radius.

Tags

CCSS.HSG.C.A.2

Front

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

Back

Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has a length of 4m and a width of 13m, what is its area?

Back

Area = 4m × 13m = 52m².

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

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

Back

Area = 1/2 × base × height.

Tags

CCSS.6.G.A.1

Front

If a triangle has a base of 12 cm and a height of 9 cm, what is its area?

Back

Area = 1/2 × 12 cm × 9 cm = 54 cm².

Tags

CCSS.6.G.A.1

Front

What is a composite figure?

Back

A composite figure is made up of two or more simple shapes.

Tags

CCSS.1.G.A.2

Front

How do you find the area of a composite figure?

Back

Find the area of each simple shape and then add them together.

Tags

CCSS.3.MD.C.7D

Front

What is the area of a square with a side length of 5 cm?

Back

Area = side × side = 5 cm × 5 cm = 25 cm².

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3