Answer:
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
