Page 224 - Maths Skills - 7

222 Maths

See the above figure carefully and answers the following questions.

16. What is the shape of above figure?
17. The base of above shape is ______________.

18. How many faces are there in the given shape?
19. Which of the following is true about the said?
(i) It has equal number of faces and vertices.

(ii) It has number of faces and edges.
(iii) It has equal number of vertices and edges.
(iv) It has equal number faces edges and vertices.

Assertion-Reason Based Questions

Directions for Questions 20 to 21: Each question consists of two statements of the questions given
below, there are two statements marked as Assertion (A) and Reason (R).mark your answer as per the code
provide below:

(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.

(d) A is false but R is true.

20. Assertion (A) : A triangle can have two obtuse angles.
Reason (R) : Sum of the three angles in a triangle is always 180°.

21. Assertion (A) : The median of the data series is the middle term or the mean of the two middle
terms.
Reason (R) : Median divides the total frequency into two equal parts.

SUBJECTIVE BASED QUESTIONS

22. Draw the top side for the following solid.

23. Draw the bar graph:

Marks 0 – 10 10 – 20 20 – 30 30 – 40 40 – 50 Total
No. of students 2 4 18 12 4 40

24. Find the median and range of the given data:
24, 36, 40, 30, 35, 20, 38

25. Find the average of 4.2, 3.8, 7.6 and 3.4
26. The median of observation 11, 12, 14, 18, x + 2, 20, 22, 25, 61, arranged in ascending order is 21.
Find the value of x.