Question

14. Find the area of an isosceles triangle, each of whose equal sides is 13 cm and base 24 cm.
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Answer 1

GIVEN:

Equal sides= 13 cm

Base= 24 cm

TO FIND:

Area

ANSWER:

60 cm²

SOLUTION:

first and second side=13cm (a and b)

third side=24 (c side)

semi perimeter =13+13+24/2= 25

area of triangle = √s(s-a)(s-b)(s-c)

√25(25-13)(25-13)(25-24)

√25×12×12×1

√5×5×2×2×3×2×2×3

60cm²