Question

5.) Find the perimeter and area of a triangle with a base of 11 cm, height of 13.4 cm, and sides of 15

cm and 14 cm.

Answer 1

Perimeter = 40cm

Area= 73.7 cm2

Explanation:

Hi, to answer this question we have to:

Sum all the sides for the perimeter:

Perimeter = 11cm+ 15 cm +14 cm = 40cm

Apply the area of triangle formula for the area (A)

A = bh/2

Where

b = base

h = height

Replacing with the values given

A = (11 x 13.4)/2

A = 147.4/2

A =73.7 cm2

Feel free to ask for more if needed or if you did not understand something.

Answer 2

Perimeter is the sum of the 3 sides:

11 + 15 + 14 = 40 cm.

Area is 1/2 x height x base:

1/2 x 13.4 x 11 = 73.7 square cm.