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3 years ago

An equilateral triangle has a perimeter of 78 cm.

Mathematics

1 answer:

kakasveta [241]3 years ago

6 0

Answer:

The area of the triangle is : 201.5 cm ²

<h2>Step-by-step explanation:</h2>

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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