How do we find the area of isosceles triangle according to NCERT solutions for Class 9 Maths exercise 10.1?
Answer (1)
As two sides of an isosceles triangle are equal, we find the midpoint of the non-equal side of the triangle. Then we connect that midpoint to the vertex above it, and the isosceles triangle is divided into two right-angle triangles. We can then get the area of each right-angle triangle and sum them to get the area of the isosceles triangle.
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