Directions Find the red on cumference of each circle. Round to the nearest tenth.

Answer/Step-by-step explanation:

Area of circle, A = πr²

Circumference of circle, C = 2πr or πd

1. r = 14 in.

A = π*14² = 615.75 = 615.8 in.² (nearest tenth)

C = 2*π*14 = 87.96 = 87.0 in (nearest tenth)

2. r = ½(16) = 8 ft

A = π*8² = 201.06 = 201.1 ft² (nearest tenth)

C = 2*π*8 = 50.27 = 50.3 ft (nearest tenth)

3. r = 1.7 cm

A = π*1.7² = 9.08 = 9.1 cm² (nearest tenth)

C = 2*π*1.7 = 10.68 = 10.7 cm (nearest tenth)

4. r = ½(13) = 6.5 m

A = π*6.5² = 132.73 = 132.7 m² (nearest tenth)

C = 2*π*6.5 = 40.84 = 40.8 m (nearest tenth)

answer: answer

step-by-step explanation:

an altitude of 15,000 feet

step-by-step explanation: