Angles of a triangle added together equal 180
A=180-143=37
B is 145 b/c like angles
C=A b/c lines are similar
D=143-85=58
E=C b/c like angles
F=90-E=53
G=48
H=180-48-G=180-48-48=84
K=180-H=96
M=180-K-D=180-96-58=26
P=180-85-M=69
R=180-P=180-69=111
S=P
