brunoivanlara4 brunoivanlara4

20-05-2020
Mathematics

contestada

Henry knows that the circumference of a circle is 18 pie inches. What is the area of the circle?
O 36 x in 2
O 81x in 2
O 162 x in?
O 324 sin?

Respuesta :

SneeryEmperor51 SneeryEmperor51

20-05-2020

Answer:

81x in 2 (B)

Step-by-step explanation:

A = πr^2

Radius = 9

The Radius is 9 because you divide 18 by 2, the equation for Circumference is 2πr.

Answer: 81

Plug 9 into r in the Area equation.

π9^2

81π

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