Question

Find the area of an equilateral triangle whose each side is 16 cm.​

Answer 1

Answer:

Given,

Side = 16cm

So,

Area of the triangle = √3/4 × side^2

= √3/4 × 16 × 16

= √3 × 4 × 16

= 64√3

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Answer 2

Answer:

Area of an equilateral triangle is  $64 \sqrt{3} \ cm ^{2}$ .

Step-by-step explanation:

To find :  area of an equilateral triangle .

Given : side of equilateral triangle is  16 cm.​

Solution :

• As per given data we know that , ide of equilateral triangle is  16 cm.​  We have to find  area of an equilateral triangle .
• We know that all sides of equilateral triangle are equal , If ' $a$ ' is the side of equilateral triangle , then are of triangle is given by ,

      Area of equilateral triangle = $\frac{\sqrt{3} }{4} a^{2}$

• Here , $a = 16\ cm$  

      Area of equilateral triangle = $\frac{\sqrt{3} }{4} (16)^{2}$

                                                    $=\frac{\sqrt{3} }{4} \times 256\\\\= \sqrt{3} \times 64 \\\\= 64 \sqrt{3} \ cm ^{2}$