ABCD is a rectangle with AB = 12 cm and BC = 5 cm. Find AC
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Answered by
8
Answer:
13 cm should be the ans on applying pythagaros theorem .
hope it helps u .
GN SD TC bye
Answered by
133
13cm
given :- ABCD is a rectangle in which..AB = 12cm and BC = 5cm
we know that, all angles of a rectangle is of 90°
so ABC is a right angle triangle..
so by Pythagoras theorem
AB² + BC² = AC²
→ AC² = (12)² + (5)²
→ AC² = 144 + 25
→ AC² = 169
→ AC = √169
→ AC = 13cm
properties of rectangle :-
- opposite sides are equal and parallel
- all angle are equal to 90°
- diagonals are equal and bisect each other
- area of rectangle = length × breadth
- perimeter of rectangle = 2(length + breadth)
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