Question

If the perimeter of the triangle is 73 mm, find the value of x.

Answer 1

Final answer is x = 27 mm.

Explanation:

Given that perimeter of the triangle = 73 mm.

And two known sides are of 35 mm and 11mm.

Using that information, we need to find the value of x.

We know that perimeter of the triangle is just sum of all three sides.

So we can write:

Perimeter = x+35+11

73 = x+35+11

73 = x+46

73 -46 = x

27 = x

Hence final answer is x = 27 mm.

Answer 2

27 mm

Explanation:

The perimeter of the triangle is the sum of all sides lengths. In given triangle

first side has the length of 11 mm, the second side has the length of 35 mm.

If the perimeter is 73 mm, then

`73=11+35+x,\\ \\ x+46=73,\\ \\x=73-46,\\ \\x=27\ mm.`