Area Calculations

You need to find the circumference of a circle. What is the formula for circumference using diameter (d)?

• C = πd

• C = 2πr

• C = πd/2

• C = πr

Tags

CCSS.7.G.B.4

A circle has diameter 10 cm. What is its circumference? Use π ≈ 3.14

• 31.4 cm

• 30 cm

• 10 cm

• 3 cm

Tags

CCSS.7.G.B.4

If the radius of a circle is 6 cm, what is its circumference? Use π ≈ 3.14

• 37.68 cm

• 12.92 cm

• 36.77 cm

• 9.02 cm

Tags

CCSS.7.G.B.4

What is the formula for the perimeter of a rectangle with length L and width W?

• P = 2L + 2W

• P = L × W

• P = 2(L + W)

• P = L + W

Tags

CCSS.4.MD.A.3

If a rectangle is 9 cm long and 4 cm wide, what is its perimeter?

• 26 cm

• 13 cm

• 36 cm

• 18 cm

Tags

CCSS.4.MD.A.3

A composite shape consists of a 9 cm by 4 cm rectangle attached to a right triangle with base 4 cm and height 3 cm. What is the total area?

• 42 cm²

• 36 cm²

• 48 cm²

• 30 cm²

Tags

CCSS.6.G.A.1

What is the formula for the area of a parallelogram? Use base (b) and height (h).

• A = b × h

• A = 2(b + h)

• A = 1/2 bh

• A = b + h

Tags

CCSS.6.G.A.1

If the base of a parallelogram is 8 cm and height is 5 cm, what is the area?

• 13 cm²

• 40 cm²

• 8 cm²

• 5 cm²

Tags

CCSS.6.G.A.1

A parallelogram has base 12 cm and height 7 cm. What is its area?

• 84 cm²

• 19 cm²

• 42 cm²

• 72 cm²

Tags

CCSS.6.G.A.1

Find the perimeter of the given triangle.

• 131 cm

• 120 cm

• 140 cm

• 150 cm

Tags

CCSS.3.MD.D.8