Question

∆pqr,r=5q=3(p+q)find all angles of?∆pqr

Answer 1

in triangle pqr, given,
r=5q
5q=3[p+q]
which means,
5q=3p+3q   =>   2q=3p  =>   p=2q/3

so p+q+r=180 as we know.
2q/3 + q + 5q = 180
=> 20q/3 = 180.
=> 20q = 540
=> q = 27degrres.

r=5q=5*27= 135degrees.
p=2q/3= 2*27/3 = 18degrees.

therefore, the angles are 27,135 and 18.

Answer 2

Step-by-step explanation:

Hope you get your answer....