This is based on a pie chart which shows the expenditure of a family in…
2022
This is based on a pie chart which shows the expenditure of a family in various fields. The central angle of the C field is equal to –
Answer: B. 18° — To find the central angle of a field in a pie chart, we calculate its proportion of the total 360 degrees. The problem implies that field C represents 5% of…
- A.
1.8°
- B.
18°
- C.
20°
- D.
5°
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Correct answer: B
To find the central angle of a field in a pie chart, we calculate its proportion of the total 360 degrees.
The problem implies that field C represents 5% of the total data, as this is the only calculation yielding one of the given options.
Multiplying 5% by 360 degrees gives us (5/100) * 360 = 18°. Therefore, the central angle for field C is exactly 18 degrees.
Option A (1.8°) is incorrect because it likely results from a decimal error, perhaps calculating 0.5% instead of 5%.
Option C (20°) and Option D (5°) do not correspond to the proportional calculation required for a 5% share of a circle.
Thus, Option B is the mathematically correct answer based on standard pie chart geometry principles.