How do we find the area of a equilateral triangle triangle according to NCERT solutions for Class 9 Maths exercise 12.1?
Answer (1)
As the equilateral triangle has all sides equal so it is easy to find the midpoint of the base side. Then we join that midpoint with the vertex above and this is how equilateral triangles get separated into two right-angle triangles then we can find the area of both right-angle triangles and then add them so as to get the area of an equilateral triangle
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