Question

Q1)to construct a square we need to know
1) all the interior angles
2) all the side length
3) only one interior angle
4) only one side length


Q2) the width on size of the class interval 30-40 is
1) 10
2) 30
3) 40
4) 70



Q3) if 5278 is squared the what will be at unit place E.
1) 8
2) 7
3) 6
4) 4

PLEASE HELP ME ALL MCQ KA QUESTION ANSWER ​

Answer 1

Answer:

1. all the side length.
2. 10
3. 4

Answer 2

Answer 1: Knowing only one side length necessary for constructing a square (option 4)

The square has 4 equal sides. Thus, all its angles are right angles i.e are 90° angles hence having knowledge of the interior angles of a square is not necessary to construct it.

By knowing just the length of one side one can construct a perfect square using the necessary equipment.

Answer 2: The Width or size of the class interval is 10. (option 1)

Upper Boundary= 40

Lower Boundary= 30

Class size could be found by subtracting upper and lower boundaries

40 - 30 = 10

Answer 3: Number 4 will be on the unit place when the number 5278 is squared (option 4)

In the number 5278, the number 8 fills the unit place. While squaring  5278, 8 is multiplied by itself to bring the number 4, from its square number 64, to the unit place.