find the area of an equilateral triangle with side 20 cm ...... use the formula
[tex] \sqrt{3 \div 4 } \times side {}^{2} [/tex]
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We have, for equilateral triangle , side = 20 cm
Thus Area = √3/4 x side ²
=> √3/4 x 20 x 20
=> √3 x 100
=> 1.73 x 100
=> 173 cm²
Hope this helps
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4
root 3 × 5 × 20
100 × root 3 = ans