THE TOPIC IS: AREA OF CIRCLES WHATS THE ANSWER?? I WILL GIVE YOU BRAINLIEST AND A THANKS THANK YOU GUYS SO MUCH :))

8) 78.5 in.

11) 28.26 m

Step-by-step explanation:

The formula for area of a circle is πr^2  (pi ⋅ radius ⋅ radius).

Here, only the diameter is shown.

To find the radius, we must divide the diameter (10) by 2.

10/2 = 5.

So, 5 is the radius.

Now, we plug in the numbers.

pi ⋅ radius ⋅ radius

(3.14 is commonly used for pi)

3.14 ⋅ 5 ⋅ 5 = 78.5

78.5 is the area of this circle.

Now, to find the area of this circle, we simply repeat the steps.

6/2 = 3

pi ⋅ radius ⋅ radius

3.14  ⋅ 3  ⋅ 3 = 28.26

Step-by-step explanation:

use formula

A=πr2

okay for this formula u need to convert the diameter to a radius so 10/2=5in

now lets begin

A=πr2

A=π(r2)

A=3.14(5 in2)

A=3.14(25 in2)

A=78.50 in2

yes. we do proportions in probabilities.

answer is  

a.

7 in. x 11 in.

hope you get this right.