Question

hellp me for a brainly

Answer 1

Answer:

25π or 78.5mm²

Step-by-step explanation:

$A=3.14*5^{2} \\ =3.14*25\\ =78.5$

Answer 2

Answer:

78.5 mm² or answer D.

Step-by-step explanation:

The formula for the area of a circle is

A = π*r²

Now we can rewrite with the radius. *Note* I am using 3.14 for pi to make it easier*

A = π*5²

Solve

5² = 25

25 * 3.14 = 78.5

Now since the measurements were done in millimeters, we will add mm to the end.

Also since it is area, we need to add ²

78.5 mm²