19. Find the perimeter of the given triangle.
3x-7
2x + 5
-X+ 11
Answers
Answered by
2
Answer:
Perimeter of a triangle= sum of all sides
=( 3x-7)+(2x+5)+(-x+11)
3x-7+2x+5-x+11
4x+9
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Answered by
6
Given :
- 1st side is 3x - 7
- 2nd side is 2x + 5
- 3rd side is -x + 11
To find :
- The perimeter
According to the question,
➮ Perimeter of triangle = Sum of all its side
➮ (3x - 7) + (2x + 5) + (-x + 11)
➮ 3x - 7 + 2x + 5 - x + 11
Collecting like terms together
➮ 3x + 2x - x - 7 + 5 + 11
➮ 5x - x - 2 + 11
➮ 4x + 9
.°. The perimeter of triangle is 4x + 9...
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