Question

Find the area of the isosceles triangle.

13 cm is the side length
10 cm is the base length
what is the hight?
and area?

Answer 1

Explanation:

As we know that,

Area of isosceles triangle= 1/2 *b*h

we have a=10 and other side = hypotenuse=b=13 cm

Now e have formula to find h,

h=
`\sqrt{b^(2) -a^(2)/4}`

now putt the values ,

we get,

h=
`√(169-100/4)`

h=
`√(576/4)`

h=12 cm height of isosceles triangle ,

Area = 1/2 * b*h

Area=1/2*13*12

Area=S=60
`cm^(2)`