Area of a circle, and of parts of a circle
Grade 7 Math Worksheet - Challenge Me
Circle the best answer, or write your answer on the line.
Bo's paper card is a square with a quarter circle cut away at one corner. It has one very smooth corner. What is its area in square cm? Use π = 3.14. Do not round.
Esme's quilt patch is a square with a quarter circle cut away at one corner. One corner went for a curve. What is its area in square inches? Use π = 3.14. Do not round.
Sketch, not to scale. Kira's dish has a blue rim, a ring between two circles. What is the area of the blue rim in square cm? Use π = 3.14. Do not round.
Luz's hand mirror has a frame, a ring between two circles. The frame likes the attention. What is the area of the frame in square cm? Use π = 3.14. Do not round.
Sketch, not to scale. Milo's plate has a rim, a ring between two circles. The rim holds everything together. What is the area of the rim in square cm? Use π = 3.14. Do not round.
Pia's round flower bed is 6 m across. Each square meter needs 3 liters of mulch. How many liters of mulch does it need? Use π = 3.14. Do not round.
Ren's round lawn is 10 m across. Each square meter needs 30 g of grass seed. Birds, look away. How many grams of grass seed does it need? Use π = 3.14. Do not round.
Zee's pizza is 32 cm across, cut into 8 equal slices. Each square cm gets 0.5 g of cheese. How many grams of cheese are on one slice? Use π = 3.14. Do not round.
Ari's pizza is 24 cm across, cut into 6 equal slices. Each square cm gets 0.5 g of cheese. How many grams of cheese are on one slice? Use π = 3.14. Do not round.
Bo's pizza is 20 cm across, cut into 5 equal slices. Each square cm gets 0.5 g of cheese. How many grams of cheese are on one slice? Use π = 3.14. Do not round.