LA5 marksYear: 2025MediumCBSE Class 10
quadratic-equationsheron-formulaisosceles-triangle

Question

The perimeter of an isosceles triangle is 32 cm. If each equal side is of the base, find the area of the triangle.

Solution

1
Let each equal side of triangle be and base be .
ATQ,
Also,
+1 mark
2
+1 mark
3
On solving these equations, we get and .
sides of the triangle are 10 cm, 10 cm, 12 cm.
+0.5 marks
4
Semi-perimeter cm.
Area of the triangle
+1.5 marks
5
cm
+1 mark

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