Question

In a triangle PQR, 2∠P = 4∠Q = 7∠R, find all angles​

Answer 1

Let, P= 4x

Q= 7x

R= x

p + q + r = 180

4x + 7x + x = 180

12x = 180

x = 180 /12

x = 15

p = 4*x = 4*15 = 60

Q = 7*x = 7*15 = 105

R = x = 15