Question

the base of an isosceles triangle is 10 cm and one of equal side is 13 cm find its area using heros formula

Answer 1

hey,,
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your answer is in attachment;

Answer 2

answer---

s=a+b+c/2

s=10+13+13/2

s=36/2

s=18

by using heron's formula

area= √s(s-a)(s-b)(s-c)

√18(18-10)(18-13)(18-13)

√18(8)(5)(5)

√3×3×2×2×2×2×5×5

3×2×2×5

6×10

60cm^2

so ANS will be 60cm^2