You will use what you know about the triangle, including the size of sides or angles
of that specific triangle, plus properties of any special category of triangles of which
it is a member, to calculate the unknown height.
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To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle. To find the area of a triangle find the base and the height of the triangle. Then multiply the base by the height, then divide by 2. To find the perimiter of a triangle add together the outside edge of the triangle.
It is impossible to find the height of a triangle with just it's base.
It is impossible to find the area of a triangle with no height, if the triangle had no height it would not even be a triangle, just a angle.
Area of a triangle = 1/2*base*height
1/2bh b=base h=height To find the are of a triangle,you have to multiply the base times height and divide the answer by 2. To find the area of a triangle you need to multiply all the sides of the triangle and then divide by 2.