Question

ABCD is a rectangle with AB=12cm and BC=5cm Find AC

Answer 1

In triangle ABC
=> AB=12cm , BC=5cm , AC =?
So, by Pythagoras theorem
=> (AC)²= (AB)² + (BC)²
=> (AC)² = (12)² + (5)²
=> (AC)² = 144 + 25
=> (AC)² = 169
=> AC = √169
=> AC= 13cm

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Answer 2

Answer:

ABCD is Rect.

AB = 12cm

BC = 5cm

All angles of rect. are 90

Angle a'b'c'd =90

In triangle ABC

H²=B²+P²

AC²= 12²+ 5²

AC² = 144 + 25

AC² = 169

AC = √169

AC = 13

Step-by-step explanation:

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