area of euilazeral triangle of side 20 cm.also its altitude
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altitude= √3/2× a= √3/2×20=10√3 cm will be the answer
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Heya !!!
Side of an equilateral triangle = 20 cm
Therefore,
Area of an equilateral triangle = ✓3 / 4 × (Side)²
=> ✓3/4 × (20)²
=> ✓3/4 × 400
=> ✓3 × 100
=> 100✓3 cm².
And,
Altitude of an equilateral triangle = ✓3/2 × (Side)
=> ✓3/2 × 20
=> 10✓3 cm
★ HOPE IT WILL HELP YOU ★
Side of an equilateral triangle = 20 cm
Therefore,
Area of an equilateral triangle = ✓3 / 4 × (Side)²
=> ✓3/4 × (20)²
=> ✓3/4 × 400
=> ✓3 × 100
=> 100✓3 cm².
And,
Altitude of an equilateral triangle = ✓3/2 × (Side)
=> ✓3/2 × 20
=> 10✓3 cm
★ HOPE IT WILL HELP YOU ★
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