formula for area of an equilateral triangle?

Answer 1

area=1/2 base x height

Answer 2

The most common expression used to find the area of a triangle is

1/2 x base x height.
Thus, for example, a triangle that has a base of 5 units and a height of 2 units has an area of 5 square inches, meters, kilometers...whatever

1/2 x 5 x 2 = 5 square units.

Answer 3

have you ever found out approximately 30-60-ninety triangles yet? SO the formula for the area of a triangle is .5 x base x top. in case you draw the top of an equilateral triangle in, you notice which you divided the triangle into 2 congruant 30-60-ninety triangles. the rule of thumb for those triangles is that the hypotenuse is two circumstances the shorter ingredient (enable's call it x), and the longer ingredient is sqrt.thrice x. So seventy two = 2 circumstances x. x = 36. The longer fringe of the triangle, or the top of the entire equilateral triangle, is sqrt3 circumstances 36. See in case you will get it from there!

Answer 4

Height of the Triangle Multiplied by the Base divided by two

The reasoning behind it is, a triangle is a three sided square.

Therefor, a triangle takes up EXACTLY 1/2 the space of a square.

So you find the area of the Square (Base X Hieght)
And divide by two.

Therefor,

(Base X Height)/2

Answer 5

1/2 the base times the height.

Answer 6

Yes, it's 1/2bh. Obviously, the base is 's', the length of a side. The height will be s times the square root of 3 divided by 2. So (1/2) (s) (square root of 3)/2 = square root of 3 times s divided by 4

Answer 7

(1/2)base*hieght

Answer 8

like any other triangle

1/2*base*height