Question

A triangle has perimeter 3a+11. One side is 2a and another side is 8. What is the third side?

Answer 1

1a+3 is the answer to your equation

Answer 2

1a + 3

Explanation:

What's the perimeter of a triangle?

❖ The perimeter of a triangle is the distance around a triangle, or the

sum of all its side lengths.

How does it apply here?

❖ In this case, we're given the perimeter of the triangle as 3a + 11. We

also have two dimensions of the triangle: 2a and 8. Now, we need to

find the third side. To find the third side, we subtract 2a + 8 from 3a +

11.

Solving

• 
  `(3a+11)-(2a+8)`
• 
  `3a+11-2a-8`
• 
  `1a+3`

Now, let's check if 1a + 3, 2a, and 8 add up to 3a + 11.

• 
  `1a + 3 + 2a + 8`
• 
  `(1a+2a)+(3+8)`
• 
  `3a+11`

Therefore, the answer is 1a + 3.

Have a lovely rest of your day/night, and good luck with your assignments! ♡