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.
Tala's garden bed is a rectangle with a half circle on one end. The worms say the curve is nice. What is its area in square meters? Use π = 3.14. Do not round.
Zee's paper banner is a rectangle with a half circle on one end. One end is a little dramatic. What is its area in square cm? Use π = 3.14. Do not round.
Sketch, not to scale. A rectangle 20 cm long and 10 cm wide, with a half circle on one 10 cm end. The half circle's straight side is that end. Sketch, not to scale. A rectangle 20 cm long and 10 cm wide, with a half circle on one 10 cm end. The half circle's straight side is that end. 20 cm 10 cm Not to scale. 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. A square 9 in on each side. A quarter circle with radius 5 in, centered at one corner, is cut away. Sketch, not to scale. A square 9 in on each side. A quarter circle with radius 5 in, centered at one corner, is cut away. 9 in 5 in A quarter circle with radius 5 in, centered at one corner, is cut away. Not to scale. Jun's lawn is a square with a quarter circle cut away at one corner. A duck claimed the cut corner. What is its area in square meters? Use π = 3.14. Do not round.
Sketch, not to scale. A square 15 m on each side. A quarter circle with radius 6 m, centered at one corner, is cut away. Sketch, not to scale. A square 15 m on each side. A quarter circle with radius 6 m, centered at one corner, is cut away. Sketch, not to scale 15 m 15 m 15 m 15 m 6 m 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.
Sketch, not to scale. Two circles with the same middle: the outer radius is 12 cm and the inner radius is 9 cm. The blue rim between them is shaded. Sketch, not to scale. Two circles with the same middle: the outer radius is 12 cm and the inner radius is 9 cm. The blue rim between them is shaded. blue rim outer radius 12 cm inner radius 9 cm 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. Two circles with the same middle: the outer radius is 7 cm and the inner radius is 5 cm. The frame between them is shaded. Sketch, not to scale. Two circles with the same middle: the outer radius is 7 cm and the inner radius is 5 cm. The frame between them is shaded. Sketch, not to scale 7 cm 5 cm 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.
Sketch, not to scale. A circle with its diameter 10 m drawn across. Sketch, not to scale. A circle with its diameter 10 m drawn across. 10 m Not to scale. Tala's round vegetable patch is 5 m across. Each square meter needs 40 g of plant food. How many grams of plant food does it need? Use π = 3.14. Do not round.
Sketch, not to scale. A circle with its diameter 5 m drawn across. Sketch, not to scale. A circle with its diameter 5 m drawn across. 5 m Not to scale. 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.
Sketch, not to scale. A circle with its diameter 32 cm drawn across, cut into 8 equal slices with one slice shaded. Sketch, not to scale. A circle with its diameter 32 cm drawn across, cut into 8 equal slices with one slice shaded. Sketch, not to scale 32 cm 8 equal slices 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.
Sketch, not to scale. A circle with its diameter 24 cm drawn across, cut into 6 equal slices with one slice shaded. Sketch, not to scale. A circle with its diameter 24 cm drawn across, cut into 6 equal slices with one slice shaded. 24 cm Not to scale.