Area and Circumference of a Circle

Marisa purchases a pot for her father's garden. The diameter of the bottom of the pot is 18 cm. What is the area of the pot's bottom? (Round to the nearest whole number.)

• 28 cm²
• 57 cm²
• 254 cm²
• 1017 cm²

Tags

CCSS.HSG.GMD.A.1

What is the area of a circle with a diameter of 10 cm ?

• 31.4 cm²
• 78.5 cm²
• 15.7 cm²
• 314 cm²

What is the formula for area of a circle given the radius?

• A = πr
• A = 2πr
• A = πd
• A = πr²

Tags

CCSS.HSG.GMD.A.1

Jonas drew a circle with half the radius of Hannah's. Hannah drew a circle with a radius of 30 cm. What is the area of Jona's circle?

• 2,700 cm²

• 675 cm²

• 90 cm²

• 15 cm²

Tags

CCSS.HSG.GMD.A.1

Circle N has half the radius of Circle M. Circle M has a radius of 10 cm. What is the area of Circle N?

• 31.4 cm²

• 314 cm²

• 78.5 cm²

• 5 cm²

Circle R has half the radius of Circle Q. Circle Q has a radius of 12 cm. What is the area of Circle R?

• 37.68 cm²

• 452.16 cm²

• 6 cm²

• 113.04 cm²

What is the area of this circle?

• 163.2
• 15.3
• 124.2
• 113.1

Tags

CCSS.HSG.GMD.A.1

What is the area of this circle?

• 1256.64
• 31.41
• 314.16
• 123.12

The radius of a circular clock is 13 centimeters. What is the area?

• 530.66 cm²

• 81.68 cm²

• 40.84 cm²

• 348.99 cm²

Tags

CCSS.HSG.GMD.A.1

A hula hoop has a diameter of 3 feet. What is it's area?

• 18.85 ft²

• 9.42 ft²

• 28.26 ft²

• 7.07 ft²

Tags

CCSS.HSG.GMD.A.1