Question

Q.1 Answer the following questions
1) what is the angle name for one-fourth revolution?
2) what are counting numbers called?
3) write additive inverse of 67
4) Draw a circle with center 0and diameter 3 cm.
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Answer 1

Answer:

Right-angle

Hence the angle name for one-fourth revolution is Right-angle.l is correct answer

Answer 2

Answer:

1) Right angle is one fourth of 360(revolution) 

=360/4=90°

2)The counting numbers {1, 2, 3, ...} are commonly called natural numbers.

3)The additive inverse of 67 is -67.