Find the diagonal $d$ of a rectangle if side $a = 8 cm$ and side $b = 65 cm$ .

Answer

$261 cm$

Explanation

To find diagonal $d$ use Pythagorean Theorem:

a^{2} + b^{2} = d^{2}

After substituting $a = 8 cm$ and $b = 65 cm$ we have:

(8 cm)^{2} + (65 cm)^{2} = d^{2}

64 cm^{2} + 180 cm^{2} = d^{2}

d^{2} = 244 cm^{2}

d = 244 cm^{2}

d = 261 cm

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Find the diagonal d of a rectangle if side a=8cm and side b=65​cm.

261​cm

Find the diagonal $d$ of a rectangle if side $a = 8 cm$ and side $b = 65 cm$ .

$261 cm$