Author name: khushikhanera

Exercise 11.1 Q1. Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. […]

Q1. A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side ‘a’. Find the area of the

Exercise 9.1 Q1. Recall that two circles are congruent if they have the same radii. Prove that equal chords of

Exercise 8.1 Q1. If the diagonals of a parallelogram are equal, then show that it is a rectangle.Ans:  Given that,AC

Exercise 7.1 Q1. In quadrilateral ACBD, AC = AD and AB bisects ∠ A. Show that ∆ ABC ≅ ∆

Exercise 6.1 Q1. In Fig. 6.13, lines AB and CD intersect at O. If ∠AOC +∠BOE = 70° and ∠BOD

Q1: Which of the following statements are true and which are false? Give reasons for your answers.(i) Only one line

Exercise 4.1 Q1. The cost of a notebook is twice the cost of a pen. Write a linear equation in

Exercise 3.1 Q1. How will you describe the position of a table lamp on your study table to another person?Ans:

Q1: Use suitable identities to find the following products: (i) (x + 4)(x + 10) Ans: Using the identity (x + a)(x