Question

6. Additive inverse of - 6 is -
Additive
a.
1
C. 0
6
7.42 + (-68) is equal to - a. - 110
b.
6
d. 6
b.-26
c. 26
d. 110
8. The reflex angle is -
a. 210
b. 109
c. 78
d. 180
9. The number of edges in a cuboid
b. 109°
c. 78°
d. 180°​

Answer 1

Solution

1. what is the additive inverse of -6 ?

a) 1

b) 0

c) 4

d) 6

• Answer :- 6

Additive inverse :- the additive inverse is a process where it reverse its sign if the opposite is a positive number then the additive inverse will be negative and if the opposite is negative number then the additive inverse will be positive

So, for this reason the additive inverse of minus 6 will be 6 .

2. 42+(-68) is equal to ?

a) -110

b) 6

c) 26

d) 110

• Answer :- -110

Solving it !

=> 42+(-68)

• [ (+,-)=+ ]
• and as the greater number is having negative sign the answer will also have negative sign

=> -110

3. the reflex angle is _____ .

a) 360°

b) 120°

c) 180°

d) 78°

• Answer :- 180°

Reflex angel :- an angle greater than 180 degree and less than 360 degree is known as reflex angle .

4. the number of edges in a cuboid ?

a) 22

b) 11

c) 8

d) 12

• Answer :- 12 edges

a cuboid is having 6 face 8 vertex and 12 edges.

Diagram in attachment !