Find the RADIUS of the circle if the radius is (5x + 3) and the diameter of the circle is (18x - 10).

Question

Answer 1

Radius is half the diameter.

2r = d

2(5x + 3) = 18x - 10

10x + 6 = 18x - 10

-8x = -16

x = 2

d = 18(2) - 10 = 36 - 10 = 26 units

r = 5(2) + 3 = 10 + 3 = 13 units