Unit 7 Study Guide (GRADE)

What is the circumference of a circle with radius of 3 feet ?

• 18.84 feet

• 9π feet
• 28.26feet

• 15π feet

What is the area of a circle with a radius of 7?

• 43.96 inches

• 87.91 square inches

• 153.86 square inches

• 49π

How are the circumference and the diameter related?

• The diameter is equal to the area divided by pi
• The circumference is equal to the radius
• The circumference is half the diameter
• The circumference is equal to pi times the diameter (C = πd).

If the diameter of Barbara 's Easter Basket is 26 cm, Then there are approximately ___ inches in the circumference.

A triangle has a base of 5cm and a height of 6 cm. A rectangle has a base of 12cm and a height of 2.5 cm. What is the TOTAL area of both shapes.

The diameter of a circle is 4 cm. What is the circumference of the circle in centimeters? Round your answer to the nearest hundredth.

Three shapes are shown, where each square in the grid represents one square unit.

• 18
• 16
• 9

• 12

A sidewalk is in the shape of two triangles, a rectangle, and a square was built around the edge of a building as shown. What is the area of the sidewalk in square feet.

• 108 square feet

• 180 square feet

• 144 square feet

• 162 square feet

Sergio measured the sections of the statue to be painted. What is the area of Sergio's statue in square centimeters.

• 260 sq cm

• 186 sq units

• 1269 sq cm