Exercise 15.1 : Solutions of Questions on Page Number : 283 Q1 : In a cricket math, a batswoman hits a boundary 6 times out of 30 balls she plays. Find the probability that she did not hit a boundary. Answer : Number of times the batswoman hits a boundary = 6 Total number of … Read more
Exercise 14.1 : Solutions of Questions on Page Number : 239 Q1 : Give five examples of data that you can collect from day to day life. Answer : In our day to day life, we can collect the following data. 1. Number of females per 1000 males in various states of our country 2. … Read more
Exercise 13.1 : Solutions of Questions on Page Number : 213 Q1 : A plastic box 1.5 m long, 1.25 m wide and 65 cm deep, is to be made. It is to be open at the top. Ignoring the thickness of the plastic sheet, determine: (i) The area of the sheet required for making … Read more
Exercise 12.1 : Solutions of Questions on Page Number : 202 Q1 : A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side ‘a’. Find the area of the signal board, using Heron’s formula. If its perimeter is 180 cm, what will be the area of the signal board? Answer : Side … Read more
Exercise 11.1 : Solutions of Questions on Page Number : 191 Q1 : Construct an angle of 90° at the initial point of a given ray and justify the construction. Answer : The below given steps will be followed to construct an angle of 90°. (i) Take the given ray PQ. Draw an arc of … Read more
Exercise 10.1 : Solutions of Questions on Page Number : 171 Q1 : Fill in the blanks (i) The centre of a circle lies in __________ of the circle. (exterior/ interior) (ii) A point, whose distance from the centre of a circle is greater than its radius lies in __________ of the circle. (exterior/ interior) … Read more
Exercise 9.1 : Solutions of Questions on Page Number : 155 Q1 : Which of the following figures lie on the same base and between the same parallels. In such a case, write the common base and the two parallels. (i) (ii) (iii) (iv) (v) (vi) Answer : (i) Yes. It can be observed that … Read more
Exercise 8.1 : Solutions of Questions on Page Number : 146 Q1 : The angles of quadrilateral are in the ratio 3: 5: 9: 13. Find all the angles of the quadrilateral. Answer : Let the common ratio between the angles be x. Therefore, the angles will be 3x, 5x, 9x, and 13x respectively. As … Read more
Triangles Class 9 Exercise 7.1 : Solutions of Questions on Page Number : 118 Q1 : In quadrilateral ACBD, AC = AD and AB bisects ∠ A (See the given figure). Show that ΔABC ≅ ΔABD. What can you say about BC and BD? Answer : In ΔABC and ΔABD, AC = AD (Given) ∠ … Read more
Lines and Angles Class 9 Exercise 6.1 : Solutions of Questions on Page Number : 96 Q1 : In the given figure, lines AB and CD intersect at O. If and find ∠BOE and reflex ∠COE. Answer : Q2 : In the given figure, lines XY and MN intersect at O. If ∠POY = and … Read more