Question

Find the area of an isosceles triangle whose one side is 10 cm greater than each of its equal sides

and perimeter is 100 cm.​

Answer 1

Answer:

Isosceles triangle

Solve for 

area

A

≈

223.61

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

·

10

·

100

·

(

100

﹣

2

·

10

)

≈

223.6068

cm²