Question

the perimeter of an isosecels triangle is 32cm ,the ratio of equal sides to its base in 3:2 find the area of traingle

Answer 1

Answer:

8√30

Step-by-step explanation:

1. We know that's in isosceles traingle two side's are equal .

1.perimeter of isosceles triangle is = X+X +Y

2.ratio of equal side's to it's base given= 3:2

3X +3X +2X=32xm

X =4cm.

means equal side's are 3x ,3x = 12cm, 12xm.

and base side will be 2X= 8cm

3.Area of triangle= 1/2 * base * height

=1/2* 8*√120

=8√30 sqcm.

note:for find heights use Pythagoras theorem .

h=√12^2-4^2

h=√120cm