find the area of an isosceles triangle with base 6 cm and measures of each equal side is 5cm
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Answer:
A = 12 cm2
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Given,
- Lengths of equal sides are 5cm.
- Base=6cm.
Now area of isosceles triangle : 1/4b√4a²-b²
=1/4(6)√4(5)²-6²
=1/2×3√4(25)-36
=1/2×3√100-36
=1/2×3√64
=1/2×3×8
=1/2×24
=12cm²
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