Question

an isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm .find the area of the triangle​

Answer 1

Answer:

9$\sqrt{15}$ sq.cm

Step-by-step explanation:

Perimeter = 30 cm

base = 6

Height = $\sqrt{144-9}$ = $\sqrt{135}$

Area = 1/2 base x height

= 1/2  x 6 x $\sqrt{135}$ = 9$\sqrt{15}$ sq.cm

Answer 2

Answer:

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