Question

I.CHOOSE THE CORREC ANSWER


1. 0 is not

a) a natural number b) an integer c) a whole number d)a rational number


2. a+b=b+a is called

a) Commutative law of addition b) Association law of addition

c) Distributive law of addition d) None of these


3. a(b+c)=ab+ac is called

a) Commutative law b) Associative law c) Distributive law d)None of these


4. The additive Identity for rational number is

a) 1 b) -1 c) 0 d) None of these


5. The additive inverse of 2/3 is

a) -2/3 b) 3/2 c) -3/2 d) 1


6. The standard form of a linear equation in one variable Y is

a) ax+b=0 b)

2 + + = 0 c)

3 +

2 + + = 0 d)

4 +

3 +

2 + + = 0


7. A number when divided by 5 gives 6. This statement is the form of an equation is

a) x-5=6 b) x+5=6 c) x/5=6 d) 5c=6
8.

8The solution of the equation 5/x =2 is

a) 10 b) 2/5 c) 5/2 d) 1/10


9. In a two digit number, the unit’s digit is x and the ten’s digit is Y. Then ,the number is

a) 10y+x b) 10x+y c) 10y-x d) 10x-y


10. The root of the equation 5x -8=7 is

a) 1 b) 2 c) 3 d) -3


11. What is the number of sides of a triangle

a) 1 b) 2 c) 3 d) 4


12. What is the number of vertices of a triangle

a) 1 b) 2 c) 3 d) 4



13. The sum of the measures of all the three angles of a triangle is

a) 90° b) 180° c) 360° d) 720°


14. The angle sum of a convex polygon with number of sides n is

a) (n-2) 180° b) (n+2) 180° c) (2n-4) 180° d) (2n+4) 180°


15. What is the name of a regular polygon of 6 sides

a) Square b) Equilateral triangle c) Regular hexagon​

Answer 1

whole number

commutative law of addition

hexagon

n+ 2 180°

Answer 2

Step-by-step explanation:

1. A

2.D

3.C

4.B

5.A

6.A

7.D

8.A

9.A

10.D

11.C

12.C

13.B

14.B

15.c

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