BKSB Shape, Space, and Measure 2

Question 1

A rectangular room is 5 meters long and 3 meters wide. What is its perimeter?

Accepted Answer

16 m

Answer

Perimeter of a rectangle = 2 × (length + width) = 2 × (5 + 3) = 16 m.

Question 2

Which of the following shapes has exactly one pair of parallel sides?

Accepted Answer

Trapezoid

Answer

A trapezoid has exactly one pair of parallel sides, unlike rectangles, rhombuses, and parallelograms which have two.

Question 3

A cube has a side length of 4 cm. What is its volume?

Accepted Answer

64 cm³

Answer

Volume of a cube = side³ = 4³ = 64 cm³.

Question 4

How many degrees are in a right angle?

Accepted Answer

90°

Answer

A right angle measures exactly 90°, forming a perfect corner like the corner of a square.

Question 5

A circle has a radius of 7 cm. What is its diameter?

Accepted Answer

14 cm

Answer

Diameter = 2 × radius = 2 × 7 = 14 cm.

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