Question

Angles Q and R of a triangle PQR are given at 43° and 47°, check whether the
triangle is right angled triangle or not.​

Answer 1

Answer:

Yes. Triangle PQR is a right angled triangle

Step-by-step explanation:

We know that:

SUM OF ANGLES OF A TRIANGLE IS 180 DEGREES

So, in Triangle PQR,

P + Q + R = 180

=> P + 43 + 47 = 180

=> P + 90 = 180

=> P = 180 - 90 = 90

Hence, angle P is a right angle.

Therefore, triangle PQR is right angled triangle.

HOPE I WAS ABLE TO HELP YOU.