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3 years ago

BRAINLIESTT ASAP! PLEASE HELP ME :)

Mathematics

2 answers:

myrzilka [38]3 years ago

7 0

Circumference is 25.13
area is 50.27

spin [16.1K]3 years ago

6 0

<h3>Answers:</h3><h3>Exact area = 16pi square meters</h3><h3>Exact circumference = 8pi meters</h3>

Note how the units are not the same for each. The area involves square units while the circumference is a linear unit.

==========================================================

Work Shown:

d = 8 is the diameter

r = d/2 = 8/2 = 4 is the radius

A = area of circle

A = pi*r^2

A = pi*4^2

A = pi*16

A = 16pi

---------

C = circumference of the circle

C = pi*d

C = pi*8

C = 8pi

Alternatively,

C = 2*pi*r

C = 2*pi*4

C = 2*4*pi

C = 8pi

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