Question

two sides of a triangle are 5 cm and 12 cm if the perimeter is 30 cm then area of triangle is?​

Answer 1

Answer:

Let third side be X then

Perimeter=30cm given

5+12+X=30

X=30-17

=13 cm

Now by using heron's you can find the area of triangle.

Answer 2

Answer:

Answers is 30 cm(sq).By Using formula of right angle triangle