Question

Three sides of a triangle are 3a + 4b - 2, a - 7 and 2a - 4b + 3. What is its perimeter?

Answer 1

Perimeter = (3a+4b-2) + (a-7) + (2a-4b+3)
= 3a+4b-2+a-7+2a-4b+3
= 3a+a+2a+4b-4b-2-7+3
= 6a-6

Answer 2

Answer:

6a - 6 is the answer of this question, hope it helps you!