398,902 views
32 votes
32 votes
Please help me please

Please help me please-example-1
User EliandroRibeiro
by
2.6k points

2 Answers

14 votes
14 votes

Answer:

72

Explanation:

Circumference of a circle = 2πr

Area of a circle: πr^2

Plug in:

C = 2πr

30.1 = 2(3.14)r

30.1 = 6.28r

r = 4.79 (Dividing both sides by 6.28)

Use area of the circle:

A = 3.14(4.79)^2

= 72.044474

Round to nearest whole number = 72

User Andrew Kulakov
by
2.9k points
19 votes
19 votes

Answer: 72

Explanation:

User Jhoan
by
2.5k points