Advertisements
Advertisements
प्रश्न
The sides of a triangle are 2x + 3y, x + 5y and 7x – 2y, find its perimeter.
Advertisements
उत्तर
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
APPEARS IN
संबंधित प्रश्न
Find the sum of: 4a2 + 5b2 – 6ab, 3ab, 6a2 – 2b2 and 4b2 – 5 ab
Find the sum of: 4x3 + 2x2 – x + 1, 2x3 – 5x2 – 3x + 6, x2 + 8 and 5x3 – 7x
Simplify: (p – 2q) – (3q – r)
Simplify: 6a – 3 (a + b – 2)
Simplify: `10 – {4"a" – (7 – bar ("a" - 5) - (5"a" - bar(1 + "a")))`
Factorised form of 18 mn + 10 mnp is ______.
Factorise the following expression.
2a3 – 3a2b + 5ab2 – ab
Factorise the following expression.
24x2yz3 – 6xy3z2 + 15x2y2z – 5xyz
Identify the numerical coefficient of term (other than constant) in the following expression:
2(l + b)
3x + 23x2 + 6y2 + 2x + y2 + ______ = 5x + 7y2.
