Find the area of the given circle. Round to the nearest tenth. (First OR Second image)
OPTIONS: A. 22.0 cm squared
B. 38.5 cm squared
C. 11.0 cm squared
D. 42.8 cm squared

Find the circumference of the given circle. Round to the nearest tenth. (First OR Second image)
OPTIONS: A: 11.0 cm
B: 38.5 cm
C: 42.8 cm
D: 22.0

Find the area for the given circle. Round to the nearest tenth. (Third image)
OPTIONS: A: 113.0 ft squared
B: 124.8 ft squared
C: 37.7 ft squared
D: 452.2 ft squared

Find the area of the irregular shape. Round to the nearest tenth. (Forth image)
OPTIONS: A: 90.2 cm squared
B: 241 cm squared
C: 65.1 cm square
D: 72.3 cm squared

Find the are of blue portion of the irregular shape. Round you answer to the nearest tenth. (Fifth image)
OPTIONS: A: 2.7 in squared
B: 9.7 in squared
C: 3.4 in squared
D: 8.3 in squared

Question

madisonamonson madisonamonson

09-03-2017
Mathematics

contestada

Find the area of the given circle. Round to the nearest tenth. (First OR Second image)
OPTIONS: A. 22.0 cm squared
B. 38.5 cm squared
C. 11.0 cm squared
D. 42.8 cm squared

Find the circumference of the given circle. Round to the nearest tenth. (First OR Second image)
OPTIONS: A: 11.0 cm
B: 38.5 cm
C: 42.8 cm
D: 22.0

Find the area for the given circle. Round to the nearest tenth. (Third image)
OPTIONS: A: 113.0 ft squared
B: 124.8 ft squared
C: 37.7 ft squared
D: 452.2 ft squared

Find the area of the irregular shape. Round to the nearest tenth. (Forth image)
OPTIONS: A: 90.2 cm squared
B: 241 cm squared
C: 65.1 cm square
D: 72.3 cm squared

Find the are of blue portion of the irregular shape. Round you answer to the nearest tenth. (Fifth image)
OPTIONS: A: 2.7 in squared
B: 9.7 in squared
C: 3.4 in squared
D: 8.3 in squared

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zexius zexius · Answer 1 · 2017-03-09T01:15:48+01:00

1) Area = πr² = π × 3.5² = 38.48451, to the nearest tenth = 38.5 (option B)

2) Circumference = πd = π × (3.5 + 3.5) = π × 7 = 21.991... = 22.0 (option D)

3) Area = πr² = π × (12 ÷ 2)² = π × 6² = 113.097... = 113.0 (option A)

4) Area (semi-circle) = πr² ÷ 2. (π × (8 ÷ 2)²) ÷ 2 = 25.1327412287 (Area (rectangle) = l × w. 8 × 5 = 40. 40 + 25.1327412287 = 65.1327412287, to the nearest tenth = 65.1 (option C)

5) Area (circle) = πr² = π × 2² = 12.5663706144. Area (square) = l² = (2 × 2)² = 16. 16 - 12.5663706144 = 3.4336293856, to the nearest tenth = 3.4 (option C)