OUR Grade 7 Unit 3 Circles

The graph shows that while it was being filled, the amount of water in gallons in a swimming pool was approximately proportional to the time that has passed in minutes. About how much water was in the pool after 25 minutes?

• 150

• 520

• 380

• 300

The graph shows that while it was being filled, the amount of water in gallons in a swimming pool was approximately proportional to the time that has passed in minutes. About how much time has passed when the water was at 500 gallons?

• 40

• 35

• 25

• 60

Here is a circle with center H and some line segments and curves joining points on the circle. Identify the diameters in the image to the left.

• DG

• EC

• HG

• EA

Diego measured the diameter and circumference of several circular objects and recorded his measurements in the table. One of his measurements is inaccurate. Which measurement is it?

• Half Dollar Coin

• Flying Disc

• Jar Lid

• Flower Pot

A Farris Wheel has a diameter of 80 ft. How far does a rider travel in one complete rotation around the Farris Wheel?

• 251.2 feet

• 200.96 feet

• 125.6 feet

• 502.4 feet

The diameter of a bike wheel is 27 inches. If the wheel makes 15 complete rotations, how far does the bike travel?

• 84.78 inches

• 2289.06 inches

• 1271.7 inches

• 572.265 inches

The wheels on Kiran's bike are 64 inches in circumference. How many times do the wheels rotate if Kiran rides 300 yards?

• 1600 rotations

• 56.25 rotations

• 4.7 rotations

• 168.75 rotations

Find the area of the polygon.

• 20 cm sq

• 144 cm sq

• 14 cm sq

• 200 cm sq

Circle A has area 500 in sq . The radius of circle B is three times the radius of circle A. Estimate the area of circle B

• 1121 in sq

• 4500 in sq

• 5466

• 1570 in sq

Find the circumference of the circle.

• 70.65 cm

• 23.55 cm

• 47.1 cm

• 176.63