find the probability, a die falls and lands on paper only, i) inside the circle & ii) outside the circle

Question

a circle with diameter 20 cm is drawn somewhere on a rectangular piece of paper with length 40 cm and width 30 cm. this paper is kept horizontal on table top and a die, very small in size, is dropped on the rectangular paper without seeing towards it.

Answer 1

The area of the paper is 1200cm² (40 * 30).

The area of the circle is about 314cm² (πr²).

The probability of the die landing inside the circle is ³¹⁴/₁₂₀₀ = ~26%.

The probability of the die landing outside the circle is 100% - 26% = ~74%.