because triangle MNP has m<M = 35 and m<P = 47
the other angel m<N should be :
m<N = 180 - (m<M + m<P)
m<N = 180 - (35 +47)
m<N = 180 - 82
m<N = 98
m<N = 98 is an obtuse angel which is greater than 90
An obtuse triangle is a triangle in which one of the angles is an obtuse angle.
triangle MNP is an obtuse triangle
the answer is b: 18
use the pythagorean theorem to .
plug 18 for "r"
the 2 legs are 18 and 24
18 is the radius