Formula: A = Pi times radius squared
5^2 x 3.14 = 78.5
78.5 ÷ 2 (cuz it's a half circle) = 39.25inches
Answer: 39.25in
Answer:52
Step-by-step explanation:
180-56-72=x so x is 52
Given:
A figure of dilation and the center of dilation is O.
To find:
The value of y.
Solution:
The distance between center and vertex of image (d') is proportional to the distance between center and the corresponding vertex of original figure (d).
Where, k is the scale factor or constant of proportionality.
So, the scale factor for the given dilation is
We know that,
Divide both sides by 9.
Therefore, the value of y is 12.
The answer is C
I did this test yesterday