The answer may be the third one
B x is equal to 3
hope this helps
Answer:
Step-by-step explanation:
B/4=3.2
B=12.8
Area of the circle is 78.5 sq. units.
<u>Step-by-step explanation:</u>
Circumference of the circle = 31.4 units
2 π r = 31.4 units
2 × 3.14 ×r = 31. 4 units
r = 31.4 / (2×3.14)
= 5 units.
Area of the circle = π r² = 3.14 × 5 × 5 = 78.5 sq. units.
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Step-by-step explanation:
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