Each side of an equilateral triangle is 8 cm- Its area isa 163 cm 2b 323 cm 2c 243 cm 2d 83 cm 2

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Standard VI

Biology

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Each side of ...

Question

Each side of an equilateral triangle is 8 cm. Its area is

(a) 16 $\sqrt{3}$ cm² (b) 32 $\sqrt{3}$ cm² (c) 24 $\sqrt{3}$ cm² (d) 8 $\sqrt{3}$ cm²

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Solution

$Area of equilateral triangle = \frac{{(Side)}^{2} \sqrt{3}}{4}$
$= \frac{{(8)}^{2} \sqrt{3}}{4} = 16 \sqrt{3} {cm}^{2}$
Hence, the correct option is (a).

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Each side of an equilateral triangle is 8 cm. Its area is (a) 163 cm2 (b) 323 cm2 (c) 243 cm2 (d) 83 cm2

Area of equilateral triangle=Side234 =8234=163 cm2 Hence, the correct option is (a).

Each side of an equilateral triangle is 8 cm. Its area is

(a) 16 $\sqrt{3}$ cm² (b) 32 $\sqrt{3}$ cm² (c) 24 $\sqrt{3}$ cm² (d) 8 $\sqrt{3}$ cm²

$Area of equilateral triangle = \frac{{(Side)}^{2} \sqrt{3}}{4}$
$= \frac{{(8)}^{2} \sqrt{3}}{4} = 16 \sqrt{3} {cm}^{2}$
Hence, the correct option is (a).