Question 11. If x – y = 7 and xy = 9, find the value of x2+y2 Solution: Given in the question x – y… Read More

# Tag Archives: RD Sharma Class-8

Question 1. Write the following squares of binomials as trinomials: (i) (x + 2)2 Solution: x2 + 2 (x) (2) + 22 x2 + 4x… Read More

Question 11. The cross-section of a canal is a trapezium in shape. If the canal is 10 m wide at the top 6 m wide… Read More

Question 1. Find the area, in square meters, of the trapezium whose bases and altitudes are as under : (i) bases = 12 dm and… Read More

Question 16. The perimeter of a parallelogram is 150 cm. One of its sides is greater than the other by 25 cm. Find the length… Read More

Question 1. Given below is a parallelogram ABCD. Complete each statement along with the definition or property used. (i) AD = (ii) ∠DCB = (iii)… Read More

Question 1: Construct a quadrilateral ABCD in which AB = 6 cm, BC = 4 cm, CD = 4 cm, ∠B = 95° and ∠C… Read More

Question 1: Construct a quadrilateral ABCD given that AB = 4 cm, BC = 3 cm, ∠A = 75°, ∠B = 80° and ∠C =… Read More

Question 1: Construct a quadrilateral ABCD in which AB = 3.8 cm, BC = 3.4 cm, CD = 4.5 cm, AD = 5 cm and… Read More

Question 1: Construct a quadrilateral ABCD in which AB = 3.8 cm, BC = 3.0 cm, AD = 2.3 cm, AC = 4.5 cm and… Read More

Question 1: Construct a quadrilateral ABCD in which AB = 4.4 cm, BC = 4 cm, CD = 6.4 cm, DA = 3.8 cm and… Read More

Question 1. Add the following algebraic expressions: (i) 3a2b, -4a2b, 9a2b Solution: 3a2b, -4a2b, 9a2bNow we have add the given expression= 3a2b + (-4a2b) +… Read More

Question 12. By which smallest number must the following numbers be divided so that the quotient is a perfect cube? (i) 675 (ii) 8640(iii) 1600… Read More

Question 1. Find the cubes of the following numbers: (i) 7 (ii) 12 (iii) 16 (iv) 21 (v) 40 (vi) 55 (vii) 100 (viii) 302… Read More

Question 13. In Figure, find the measure of ∠MPN. Solution: As we know that Sum of angles of a quadrilateral is = 360° In the… Read More