Advertisements
Advertisements
Question
The sides of a triangle are 2x + 3y, x + 5y and 7x – 2y, find its perimeter.
Sum
Advertisements
Solution
Sides of a triangle are 2x + 3y, x + 5y, 7x - 2y
∴ Perimeter = sum of three sides of the triangle
= 2x + 3y + x + 5y + 7x - 2y
= 2x + x + 7x + 3y + 5y - 2y
= 10x + 8y - 2x
= 10x + 6y
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
For the following monomials, write its degree: – 9y2z3
Find the sum of: 4x2+ 8xy – 2y2 and 8xy – 5y2 + x2
Find the sum of: 4a2 + 5b2 – 6ab, 3ab, 6a2 – 2b2 and 4b2 – 5 ab
Find the sum of: x and 3y
Enclose the given term in bracket as required:
4a – 9 + 2b – 6 = 4a – (……..)
Simplify: `2"a" +(6 - bar("a" - "b"))`
Factorised form of p2 – 17p – 38 is ______.
(9x – 51) ÷ 9 is x – 51.
Factorise the following expression.
lx + my + mx + ly
Factorise the following expression.
2x2 – 2y + 4xy – x
