if a triangle has side lengths of (x + 2), (3x + 1), and (2x + 5), respectively, and a rectangle has a length of (x + 6) and a width of (x + 9), find the value of x so that the perimeters of the two figures are equal..

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

the answer is b: 18

step-by-step explanation:

use the pythagorean theorem to .

a^2+b^2=c^2

plug 18 for "r"

the 2 legs are 18 and 24

18^2+24^2=c^2

324+576=c^2

900=c^2

c=30

30-12=18

18 is the radius

: )

answer4 to the second power is 16

and 4 to the third power is 64,