A DVD has a diameter of 18 centimeters. What is the area of the DVD? Round your answer to the nearest hundredth. Use 3.14 for π.
2 answers:
Answer:
254.34 cm²
Step-by-step explanation:
A = πr2 Use the formula.
A = π(9)2 Substitute. Use 9 for r.
A ≈ 3.14 × 92 Substitute. Use 3.14 for π.
A ≈ 3.14 × 81 Evaluate the power.
A ≈ 254.34 Multiply.
The area of the DVD is about 254.34 cm².
The area is about 113.04 centimeters
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