Question

a=b=c=12 cm. Find the area of triangle.

Answer 1

Answer:

$\sqrt{3} \div 4 \times 12 \times 12 \\ = \sqrt{3} \times 36 \\ = \sqrt{1} 08 = 6 \sqrt{3} c {m}^{2}$

Answer 2

Area of Triangle : (Herons Formula)

√s(s-a)(s-b)(s-c)

where,

s = semi perimeter of Triangle

a,b,c = sides of triangle.

So,

Perimeter = 12+12+12 = 36

Semi Perimeter = 36/2 = 18

Putting the values,

√18(18-12)(18-12)(18-12)

√18 × 6 × 6 × 6

Area = 36√3 m²

Alternate Form:

62.35 m²

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