pearlielb
24.04.2020 •
Mathematics
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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Ответ:
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
Ответ:
Step-by-step explanation:
Ther is no graph, if we can see it, i can help you find the answer. please post a picture of the graph or give me a link to the picture.