Side of an equilateral triangle is 50% of side of a square whose side is 18 cm long. Area of equilateral triangle is:?

(81√5)/3
(81√4)/5
(80√3)/4
(81√3)/4

LohaHridoy

4 views

2025-01-04 04:42

1 Answers

AhmedNazir

Option 4 : (81√3)/4

Given:

Side of square = 18 cm

Side of triangle = 50% of 18 = 18/2 = 9 cm

Formula:

Area of equilateral triangle = (√3/4) × a²

Calculation:

Area of equilateral triangle = (√3/4) × 9 × 9 = (81√3)/4

4 views Answered 2022-09-04 04:29

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