# 40 pts please help! Find the circumference and area of a circle with a diameter of 7cm. Round your answers to the hundredth. a. C = 21.98cm and A = 38.47cm squared b. C = 21.98cm and A = 153.86cm squared c. C = 43.96cm and A = 38.47cm squared d. C = 43.96cm and A = 153.86cm squared

2 answers

###### Question:

40 pts please help!

Find the circumference and area of a circle with a diameter of 7cm. Round your answers to the hundredth.

a. C = 21.98cm and A = 38.47cm squared

b. C = 21.98cm and A = 153.86cm squared

c. C = 43.96cm and A = 38.47cm squared

d. C = 43.96cm and A = 153.86cm squared

Find the circumference and area of a circle with a diameter of 7cm. Round your answers to the hundredth.

a. C = 21.98cm and A = 38.47cm squared

b. C = 21.98cm and A = 153.86cm squared

c. C = 43.96cm and A = 38.47cm squared

d. C = 43.96cm and A = 153.86cm squared

## Answers

Answer:a.Step-by-step explanation:diameter 7cm radius 3.5cmarea =πr² =22/7* 3.5² =38.47cm²circumference=πd =22/7* 7 =22cm

Answer:a. C = 21.98cm and A = 38.47cm squaredStep-by-step explanation:Diameter is twice the radius. Therefore radius, r, is 3.5cm.Circumference = 2πr =2π(3.5)=7π=21.98cmArea=πr²=π(3.5²)=12.25π=38.47cm²

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