Question

the equal sides of an icoceles triangle is are 30 cm each and perimeter is 100 m . find the area of the triangle.​

Answer 1

Answer:

the

Step-by-step explanation:

Isosceles triangle

Solve for 

area

A

=

?

m²

a

Side

cm

P

Perimeter

m

Answer 2

Answer:

Perimeter of isosceles triangle=30cm

Length of equal sides=12cm

Let third side of triangle=xcm

According to problem,

x+12+12=30

x+24=30

x=30−24

x=6

∴ Third side of triangle=6cm

Using Heron's formula

Area of triangle=

s(s−a)(s−b)(s−c)

sq. units

where s=

2

a+b+c

s=

2

30

=15