Simplify and find the undefined values of

21

jk it's 20

step-by-step explanation:

the formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. if a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point.

answer is (b.

164 ft2)

a base  

18

b base  

7

h height  

8