find the area of triangle of sides 15cm, 12cm and 20cm
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Answered by
11
Answer:
Area of the triangle = 89.28 cm²
Step-by-step explanation:
Given :
Side of the triangle = 15 cm , 12 cm , 20 cm
To find :
The area of the triangle
Taken :
First find the semi perimeter of the triangle . To find the semi - perimeter use this formula -:
Where,
s = Semi - Perimeter
a = First side
b = second side
c = Third side
After that to find the area of the triangle use this formula -:
Solution :
Semi-perimeter -:
Area of the triangle -:
So , the area of the triangle is 89.28 cm² (approx) .
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Answer:
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