It is double the length of the base, in square units.
Area = 0.5*base*altitude
An equilateral triangle with a height of 20 has a base of 23.1 (23.09401), not 15. If the base is 15 then the height will be 13 (12.99038).
The answer is 32 cm. because the formula for the area of a triangle is 1/2*base*height. Since its an equilateral triangle, it has equal sides. so just substitute it to the given formula. It will be 1/2*8*8 so therefore its 32 :)
It is: 0.5*base*perpendicular height
Area = 1/2*base*perpendicular height.
The area of triangle is : 80.0
-- The area of any triangle is 1/2 (length of the base x height). -- For an equilateral triangle, that's equivalent to 1/2 x sqrt(3) x (length of a side).
Base times height and divided by 2.
The area of triangle is : 100.0
The base is one third of the perimeter, half of the base times the height is the area.
The base length is 5.2643 units and the height is 4.55902 units.