Question

Q1. Write an irrational number between 2 and 3. [1]

Q2. A cylinder and cone are of the same radius and same height. Find the ratio of their curved

surfaces. [2]

Q3. Given two triangles ABC and PQR in which AB=PQ, BC=QR , median AM =median PN prove that

triangle ABC is congruent to triangle PQR. [2]

Q4. Three coins are tossed 250 times and we get: [3]

3 heads : 46 times; 2 heads : 56 times; 1 head : 70 times; 0 head : 78 times.

When three coins are tossed at random, what is the probability of getting :

(i) 3 heads ? (ii) 2 heads? (iii) atmost 2 heads?

Q5. . Show that the diagonals of a square are equal and bisect each other at right angles. [3]

Q6. Draw the graph of the linear equation 3x + 4y = 6. At what points, the graph cuts x and y-axis?

[4]​

Answer 1

Answer:

4 3 heads=46 times

2 heads=56 times

1 head. =70 times

0 head= 78 time