Question

In the adjoining figure if P:Q:R = 2:3:4 . Then find the value of PQR​ ​

Answer 1

Answer:

sin(90)=1

Step-by-step explanation:

sum of three angle of triangle =180

P+Q+R =180

As Q = 90

P+R=180-Q

P+R=180-90

P+R=90

sin(90)=1

Answer 2

Step-by-step explanation:

Let P=2x

Q=3x and R=4x

R+Q+P=180 (Linear pair)

4x+3x+2x=180

9x=180

x=180/9=20

P=2x=2×20=40

Q=3x=3×20=60

R=4x=4×20=80