BCA BCA Mathematics Skills 2

Question 1

A circle has a radius of 5 cm. What is its circumference? (Use π ≈ 3.14)

Accepted Answer

31.4 cm

Answer

Circumference = 2πr = 2 × 3.14 × 5 = 31.4 cm.

Question 2

Two angles of a triangle measure 45° and 75°. What is the measure of the third angle?

Accepted Answer

60°

Answer

The sum of angles in a triangle is 180°, so the third angle = 180 − 45 − 75 = 60°.

Question 3

A square has a perimeter of 36 cm. What is the length of one side?

Accepted Answer

9 cm

Answer

A square has 4 equal sides, so each side = 36 ÷ 4 = 9 cm.

Question 4

What is the volume of a rectangular box that is 5 cm long, 4 cm wide, and 3 cm tall?

Accepted Answer

60 cm³

Answer

Volume = length × width × height = 5 × 4 × 3 = 60 cm³.

Question 5

On a coordinate plane, what is the distance between points (0, 0) and (3, 4)?

Accepted Answer

5

Answer

Using the distance formula: √(3² + 4²) = √(9 + 16) = √25 = 5.

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