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27 August, 06:45

An equilateral triangle has a perimeter of 78 cm.

If the height of the triangle is 15.5 cm, what is the area of the triangle?

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  1. 27 August, 07:17
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    The area of the triangle is : 201.5 cm ²

    Step-by-step explanation:

    All the sides of an equilateral triangle are equal. A triangle has 3 sides. If the perimeter is 78cm, 78 cm needs to be divided by 3 so find each side of the triangle.

    78:3=26

    In order to find the area of a triangle, you need to multiply the base by the height and divide the product by 2.

    26*15.5=403

    403:2 = 201.5

    So therefore, The area of the triangle is : 201.5 cm ²
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