Question

An isoscoles triangle has perimeter 30 cm and each of the equal sides is 12 cm. What is the area of the triangle?​

Answer 1

Answer:

p=a+b+c

30 =12+12+c

30=24+c

30-24=c

6=c

then herons formula

s=a+b+c

s=12+12+6

s=30÷2

s=15

put the herons formula

✓s(s-a)(s-b)(s-c)

15×(3)(3)(9)

5×3×3×3×3×3

take pair

3×3√5×3

9√15 is the answer if you want to take answer so the answer is 9×3.87 (approx)

34.83 ans