Question

If PQR is a triangle such that PQ = 10 cm and PR = 3 cm, then the side QR should be less than (<) ______ .

• A. 13

Answer 1

The correct option is A 13
Given,
PQR is a triangle.
PQ = 10 cm
PR = 3 cm

We know that the sum of two sides of a triangle should always be greater than the third side.

$\therefore$ PQ + PR > QR
10 cm + 3 cm > QR
13 cm > QR
or
QR < 13 cm
Hence, QR should be less than (<) 13 cm