Question 1

What is the perimeter of a regular hexagon with a side length of 5 cm?

Accepted Answer

The perimeter of a regular polygon is calculated by multiplying the number of sides by the length of each side. A regular hexagon has 6 equal sides. Therefore, the perimeter = 6 × 5 cm = 30 cm. Thus, the correct option is B.

Question 2

The area of a rectangle of length 7 cm and breadth 4 cm is:

Accepted Answer

The area of a rectangle is found by multiplying its length by its breadth. Area = Length × Breadth = 7 cm × 4 cm = 28 square cm. Therefore, the correct option is C.

Question 3

Find the perimeter of a square whose side is 9 cm.

Accepted Answer

The perimeter of a square is calculated by multiplying the length of its side by 4, because all four sides are equal. Perimeter = 4 × Side = 4 × 9 cm = 36 cm. Therefore, the correct option is A.

Question 4

What is the amount of region enclosed by a closed plane figure called?

Accepted Answer

The amount of surface enclosed by a closed figure is called its area. Perimeter is the distance around the boundary, and volume is for 3D objects. Therefore, the correct option is B.

Question 5

The total distance around a closed figure is called its:

Accepted Answer

Perimeter is defined as the total distance covered along the boundary of a closed geometric figure. Therefore, the correct option is D.

Mensuration