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Earn +20 ptsQ: What is the area of an equilateral triangle whose altitude is 4?
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Continue Learning about Math & Arithmetic
What is the area of an equilateral triangle that has an altitude of 9?
35.074 units2
What is equal to the area of an equilateral triangle whose perimeter is 36 inches?
62.354 inches2
What is the area of an equilateral triangle whose sides are each 6cm?
The area is: 15.6 (15.58846) square inches.
What is the formula for finding altitude and area of equilateral triangle?
The altitude formula is like this: Area x 2 divided by the base ( Ax2:b) The area formula is base x height divided by 2
Find the area of an equilateral triangle with altitude h cm?
The altitude of an equilateral triangle bisects the base. So, if the sides of the triangle were l cm, the altitude forms a right angled triangle with sides h, l/2 and hypotenuse l cm. Then, by Pythagoras, h2 = 3l2 / 4 so that h = l*sqrt(3)/2 and then area = l*h/2 = l*[l*sqrt(3)/2]/2 =l2*sqrt(3)/4
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