Question

What are the central angles of the sectors representing nuclear energy in both the years?( you may round the numbers before finding the central angles)

Answer 1

1995 => 22°

2005 => 36°

Explanation:

Central angle of the sector representing nuclear energy in 1995 = percentage of nuclear energy in 1995 ÷ 100 × 360°

Nuclear energy is approximately 6% (rounded to whole number) in 1995.

Central angle =
`(6)/(100)*360 = (6)/(10)*36`

`= (216)/(10) = 21.6`

Central angle representing nuclear energy in 1995 ≈ 22° (nearest whole number).

Central angle of the sector representing nuclear energy in 2005 = percentage of nuclear energy in 2005 ÷ 100 × 360°

Nuclear energy is approximately 10% (rounded to whole number) in 1995.

Central angle =
`(10)/(100)*360 = (1)/(1)*36`

`= \frac{36} = 36`

Central angle representing nuclear energy in 2005 = 36°.