Question

perimeter of a isosles triangle is 11cm and the base is 5cm.find it area
​

Answer 1

4cm is the hahahahahaha okay bua

Answer 2

Answer:

hope it will help you

Step-by-step explanation:

AB+BC+CA=11 cm

BC=5 cm

⇒AB=AC=3 cm

Now, using Pythagorus theorem, we get

h

2

=(AB)

2

−(BD)

2

=3

2

−(2.5)

2

=2.75 cm

2

⇒h=1.66 cm

Area =

2

1

×BC×h=

2

5(1.66)

=4.15=

20

83

cm

2