Question

What is the length of the diagonal of a rectangle having sides 11 cm and 60 cm? ​

Answer 1

Answer:

We know , That all angles of a regtangle are 90°.

We know that , Side 1 = 11 and side 2=60

Thus ,By using pythagoras theorem -

$(lenght \: of \: diagonal) ^{2} = 11^{2} + 60 {}^{2} \\ = 121 + 3600 \\ = 3721 \\ = \sqrt{3721 } = 61$

Thus the length of diagonal is 61 cm.

Answer 2

Step-by-step explanation:

Length of a rectangle =60 cm

Breadth of the rectangle=11 cm

In pythagoras theorem AB²+BC²=AC²

$so \: {60}^{2} + {11}^{2} = {ac}^{2} \\ or \: 3600 + 121 = {ac}^{2} \\ or \: \sqrt{3721} = ac \\ or \: 61 = ac$

Therefore the length of the diagonal is 61cm

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