Question

A isosceles triangle has perimeter 30cm and each of the Equal side is 12cm.Find the area of triangle

Answer 1

perimeter=30cm
a+b+c=30cm
12cm+12cm+c=30cm
24cm+c=30cm
c=30cm-24cm
c=6 cm

Answer 2

Answer:

If the perimeter is 30 cm then

(X being the 3rd side)

12+12+X=30

24+X = 30

X=30-24

X=6 cm

Using the area formula 1/2bh

1/2 * 6 * 12 = 36 cm^2

Hope this was helpful

Step-by-step explanation: