Question

If in triangle pq=9 cm qr= 12 cm rp= 15 cm ,then triangle Paris a right triangles or not?

Answer 1

Answer:

Yes it is a right angled triangle

Step-by-step explanation:

We can do this question by applying Pythagoras Theorem

which is

(PQ)^2 + (QR)^2 = (PR)^2

If this is true then the triangle is right angled triangle.

Putting the values

(9)^2 + (12)^2 = (15)^2

=> 81 + 144 = 225

=> 225 = 225

As LHS = RHS

hence proved that this triangle is a right angles triangle.