Question

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

Answer 1

Answer:

13 cm should be the ans on applying pythagaros theorem .

hope it helps u .

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Answer 2

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13cm

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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

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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)