Answer:
p=6
Step-by-step explanation:
triangles add up to 180 degrees, and a right angle =90 degrees.
from there, we can do 180-90=90 degrees then do 90/15=6. p =6
(we divide by 15 because 7+8=15)
to check, we see if all angles add up to 180.
7×6=42 8×6=48 right angle=90
42+48+90=180
