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CBSE Class 9 Answered

the area of an equilateral triangle is 49√3 sq.cm, it's perimeter is
Asked by vijaykasaudhan913 | 10 Dec, 2023, 04:40: PM
answered-by-expert Expert Answer

Let a be side of equilateral triangle.

Area of equilateral triangle = (√3/4)a2 = 49√3 sq.cm

a2 = 49 × 4 sq.cm

side a = 7 × 2 = 14 cm

Perimeter = 3 a = 3 × 14 cm = 42 cm

Answered by Thiyagarajan K | 10 Dec, 2023, 07:50: PM

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