Find the perimeter of an equilateral triangle of side $9 c m$ .

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Solution

The perimeter of a closed figure is the length of its boundary.

Perimeter of equilateral $Δ A B C = 3 \times$ side

$= 3 \times 9 c m$

$= 27 c m$

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Perimeter of a Triangle

Standard VI Mathematics

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Find the perimeter of an equilateral triangle of side 9 cm.

The perimeter of a closed figure is the length of its boundary. Perimeter of equilateral ΔABC=3×side =3×9 cm =27 cm

Find the perimeter of an equilateral triangle of side $9 c m$ .

The perimeter of a closed figure is the length of its boundary.

Perimeter of equilateral $Δ A B C = 3 \times$ side

$= 3 \times 9 c m$

$= 27 c m$