Question

What are the perimeter and area of an isosceles triangle whose base is 6cm, leg is 5cm and height is 4cm?

Answer 1

Perimeter `=16cm`
Area `=12cm^2`

Explanation:

Because it is an isosceles triangle, the legs of the triangle are equal, therefore the sides are `6cm, 5cm, 5cm`

The Perimeter of the triangle would be all of the sides added up
`6 + 5 + 5 = 11 + 5 = 16`
therefore the Perimeter of this triangle would be `16cm`

The Area of a Triangle is:
`= 1/2 (base)*(height)`
in this case, `(base) = 6cm` and `(height) = 4cm`

we can plug this in and get
`Area = 1/2 (6) * (4) = 3 * 4 = 12`
therefore the area of the triangle is `12cm^2`