Question

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

Answer 1

answer

Isosceles triangle

Solve for 

area

A

≈

40.25

cm²

b

Base

cm

P

Perimeter

cm

Using the formulas

A

=

b

h

b

2

P

=

2

a

+

b

h

b

=

a

2

﹣

b

2

4

Solving for

A

A

=

1

4

b

P

(

P

﹣

2

b

)

=

1

4

·

12

·

30

·

(

30

﹣

2

·

12

)

≈

40.24922

cm²

I hope it helps u

pls mark as brainlist answer

Answer 2

Answer:

9√15

Step-by-step explanation:

√15(15−12)(15−12)(15−6)

this is through heron's formula