Question

In a right triangle ABC, if ∠ B =90, AB =5cm, BC =12cm, the length of AC is

A) 10cm B) 12cm C) 13cm D) 17cm​

Answer 1

Answer:

C) 13cm

Step-by-step explanation:

Given that,

Angle B= 90 degree

AB = 5cm

BC = 12cm

AC^2 = AB^2 + BC^2

= 5^2 + 12^2

= 25+144

AC^2 = 169

Therefore,

AC = root 169

= 13cm

Answer 2

Answer:

AC will be 13 cm

Step-by-step explanation:

Here you can use Pythagoras Theorem

Angle B is 90°

Base and Perpendicular are given as 12 cm and 5 cm respectively.

So,

AC is hypotenuse

= AC² = BC²+AB²

= AC² = 12²+5²

= AC² = 144+25

= AC² = 169

So AC will be 13 cm

Hope this helps!