Question

in triangle PQR, angle =90then cosP=​

Answer 1

Answer:

cosP=45°

Step-by-step explanation:

∆PQR total 180°

One angle is 90°

We are solve another angles

I will solve

∆PQR solve

P+Q+R= 180°

x+x+90°=180°

2x+90°=180°

2x=180--90

2x=90

x=90/2

x=45