Question

ABC is a triangle right angled at C if a b is equal to 25 cm and ac is equal to 7 cm find BC​

Answer 1

25²=7²+bc²
625-49=bc²
bc=24cm

Answer 2

Hypotenuse^2=base ^2+ altitude^2

25^2 = 7^2+bc^2

625 = 49+bc^2

625-49= bc^2

576=bc^2

√576=bc

24cm = bc

Hope it helps you☺️