Question

Triangle PQR is right-angled at vertex R. Calculate the length of side PR, if PQ=25 cm and QR= 20 cm.

Answer 1

Step-by-step explanation:

PQ= 25 cm

QR= 20 cm

Pythagorean theorem

${25}^{2} + {20}^{2} = {x}^{2}$

625+ 400= x square

1025= x square

√1025= x

x= 32