Select Distance Education Academy
gument for Submission Third Semester/Module III Mathematics for Grade 9
Vame of student
Id. No.
Branch
Dale
Instruction I: Write "True if the statement is correct or " False" if the statement is incorrect.
Two vectors are said to be equal if they have the same magnitude and the same direction.
If the measure of each interior angle of a regular polygon are 179°, then the number of sides of the polygon is 360.
If A is a certain event, then P(A)= 0.
The sum of exterior angle of any polygon is 360°.
The mode of a given set of data is 5. If each value of the data is increased by 10, then the new mode is 15.
Mode, median and mean of a given set of data can never be equal.
There is no regular polygon with each central angie is 72°.
If the proportionality constant for two similar polygons is 1, then they are congruent.
A polygon is said to be concave if at least one of its interior angles is greater than 180°.
Any two regular polygons with the same number of sides are congruent.
Instruction II: Choose the correct answer from the given alternatives.
11. If each exterior angle of a regular polygon is 36°, then what is the sum of the interior angle of this polygon?
A. 10800
B. 900°
С 1440°
D. 1260°
12. AABC ~ ADEF, if the area of AABC is 64cm?and area of ADEF is 9cm?. What is the length of DE when AB= 24cm?
B. 4cm
C. 10cm
D. 9cm
13. Given two vectors U = (3, -4) and V = (2,2) in the plane. Then 2U + 4V is equal to
C. (5,-2)
D. (14,0)
A. (14,16)
B. (14, -16)
14. Which one of the following is a qualitative data?
A. Blood type
C. Weight of students
B. Rank of students
D. Salary of an employee
15. If a number is to be selected at random from 1 to 10 both inclusive. What is the probability that the number is a prime number?
A.
B. ?
C. 3
D.
큼
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