roselyngicom42 roselyngicom42

19-07-2021
Mathematics

contestada

the diameter of a circle is 8 cm what is its area?

Respuesta :

limichael2005 limichael2005

19-07-2021

A = πr^2 and d = 2r.

So r = 8/2 = 4 cm.

Now use the first formula

A = π(4 cm)^2 = 50.265 cm^2

Answer Link

Otras preguntas

Which of these statements about water is true

Why was the colonization of Africa, Asia, and the Americas shared by Britain, France, and Spain?

a substances formed from atoms of two or more elements is called a _____? compound molecule mixture

what does "consistent basis" mean

What is the length of side BC? (Remember: Use just the given information marked on the diagram.)

what line has slope of 5/8 and goes through the point (2,-3)

which describes a significant difference between the north and the south in the years leading up to the civil war?

solution to equation, e*x = 7.9

2y+7 ÷ -4y - 10 Evaluate the expression below when y = -3

What is the value of x? A. 70.5 B. 58 C. 83 D. 50