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Perimeter of Plane Figures

Find the peri...

Question

Find the perimeter of the given right-angled triangle.

2 units

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4 units

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$\sqrt{2}$ units

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2 + $\sqrt{2}$ units

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Solution

The correct option is D
2 + $\sqrt{2}$ units

AB = 1 unit

BC = 1 unit

$∴$ AC = $\sqrt{1^{2} + 1^{2}}$ = $\sqrt{2}$ units

Hence, Perimeter of this triangle = AB + BC + AC
= $1 + 1 + \sqrt{2} = 2 + \sqrt{2}$ units

Suggest Corrections

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