Question

9) In an isosceles triangle PQR, ZQ = ZR = 2 ZP.
Find the three angles.​

Answer 1

Answer:

P= 90

Q= 45

R= 45

Step-by-step explanation:

ZQ = ZR = L2P

Let 'x' be angle Q or R (Since they are equal)

We know that sum of three angle 180 degrees. i.e ZP + ZQ + ZR = 180 =

1x (20) + 1x (ZR) + 2x (<P) = 180°

.. 4x= 180

x= 180/4= 45°

So zQ= 1x= 1*45= 45°

ZR= 1x= 1*45= 45°

ZP= 2x= 45*2= 90°