Question

Find the length of the diagonal of a rectangle whose sides are 15 cm and 8 cm​

Answer 1

SOLUTION:

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ANSWER:

• Length of the diagonal is 17cm.

GIVEN:

• Length of the rectangle = 15cm.
• Breadth of the rectangle = 8cm.

TO FIND:

• Diagonal of the rectangle?

SOLUTION:

Let the diagonal be x

FORMULAE TO FIND:

Diagonal = √length² - Breadth²

SOLVING BY APPLYING THE FORMULA:

Diagonal = √15² + 8²

Diagonal = √225 + 64

Diagonal = √225 + √64

Diagonal = √289

Diagonal = 17

Hence , The length of the diagonal is 17cm .

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Answer 2

Question:-

1. Find the length of the diagonal of a rectangle whose sides are 15cm and 8cm.

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To find,

• The length of the diagonal of a rectangle

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Given:-

• sides of rectangle = 15cm and 8cm

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Let:-

• H = hypotenuse
• B = Base
• P = perpendicular

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Answer:-

In right-angled triangle DAB

$\rm H^{2} =B^{2} +P^{2}$

$\rm DB^{2} =AB^{2} +AD^{2}$

$\rm DB^{2} =(15^{2})+(8^{2})$

$\rm DB^{2} =225+64\\\rm DB^{2} =289\\\rm DB^{2} = (17^{2})$

DB = 17cm

AC = 17cm

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Know more:-

•  Refer the attachment