Question

1. The number of times a particular observation occurs in a given data is called
a) frequency b) range c) mean d) none of these
2. The sum of the measures of all the four angles of a quadrilateral is a) 90o b) 180o c) 360o d) 720o
3. How many diagonals does a regular hexagon have?
a) 2 b) 0 c) 4 d) 9
4. What is the name of a regular polygon of 3 sides?
a) equilateral triangle b) square c) regular hexagon d) regular octagon
5. The measures of the 3 angles of quadrilateral are 60o , 75o and 85o . The measure of the fourth angle is
a) 650 b) 750 c) 850 d) 135 o
6. Two adjacent angles of a quadrilateral measures 130o and 400 . The sum of the remaining two angles is
a) 190o b) 180o c) 360o d) 90o
7. The measure of each exterior angle of a regular polygon of 9 sides is
a) 30 o b) 40 o c) 60o d) 45 o
8. How many sides does a regular polygon have if the measure of an exterior angle is 24o ?
a) 6 b) 9 c) 15 d) 12 9. Which of the following statement is false?
a) All the angles of a rectangle are equal. b) No angle of a rectangle can be obtuse. c) The diagonals of a rectangle bisect each other. d) The opposite sides of a rectangle are not equal.
10. Which of the following statement is true?
a) All the rectangles are square. b) All the parallelograms are rhombus. c) All the squares are rhombus. d) Each parallelogram is a trapezium.​

Answer 1

which is the even prime nu

Answer 2

Answer:

1. option (a) Frequency

2. option (c) 360°

3. option (d) 9

4. option (a) equilateral triangle

5. option (d) 135° ( if the given angles are 65°,75°,85°) otherwise for 60°,75°, 85° angles correct answer is 140° because

60+75+85+a= 360°

220+a=360

a=360-220

a= 140

6. option (d) 90°

7. option (b) 40°

8. option (c) 15

9. option (d)

10. option (a)