Question

ABC is a triangle ,right-angled at C. If AB=25cm and AC =7cm , find BC

Answer 1

Hlo friend, here is your answer.

Given that

AB = 25cm

AC = 7cm

Solution

BC^2 = AB^2 - AC^2

BC^2 = 25^2 - 7^2

BC^2 = 625 - 49

BC^2 = 576

BC = √576

BC = 24 cm


Hope it helps you.

With regards@

Tanisha

Answer 2

Given Right angled at C,So AB is the hypotenuse.

According to pythagoras thoerem ,

Hypotenuse²=side²+side²

AB²=BC²+AC²

25²=BC²+7²

BC²=625-49=576

BC=√576=24

Therefore ,BC=24cm