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

1 Answer
Nov 30, 2015

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