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

Q1. Determine which of the following polynomials has (x + 1) a factor:(i) x3 + x2 + x + 1Ans: Let p(x) =