Question

1. Find the perimeter of the triangle

2. Find the area of the triangle
(For second part)
3. Find the missing side to the similar triangles
4. What is the sum of the angles of a triangle

Answer 1

Explanation:

Answer 2

1.

Perimeter of the triangle is =
`26+34+39` = 99 inches

2.

Area of triangle =
`(1)/(2)bh`

=
`(1)/(2)*39*21` = 409.5 square inches.

3.

Let the missing side be x

We get
`(2)/(3) =(4)/(x)`

=>
`2x=12`

x = 6

Hence, the missing side is 6 inches.

4.

The sum of the angles of a triangle is always 180 degrees.