What is the area of a circle with a radius of 4 cm? (Use π = 3.14) (2022)

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Question: What is the area of a circle with a radius of 4 cm? (Use π = 3.14) (2022)

Options:

Correct Answer: 50.24 cm²

Exam Year: 2022

Solution:

Area = πr² = 3.14 * (4)² = 3.14 * 16 = 50.24 cm²

What is the area of a circle with a radius of 4 cm? (Use π = 3.14) (2022)

What is the area of a circle with a radius of 4 cm? (Use π = 3.14) (2022)

Step 1: Identify the radius of the circle. The radius is given as 4 cm.
Step 2: Use the formula for the area of a circle, which is Area = πr².
Step 3: Substitute the value of π with 3.14 and the radius (r) with 4 cm into the formula: Area = 3.14 * (4)².
Step 4: Calculate (4)², which is 4 * 4 = 16.
Step 5: Now multiply 3.14 by 16: Area = 3.14 * 16.
Step 6: Perform the multiplication: 3.14 * 16 = 50.24.
Step 7: Write the final answer: The area of the circle is 50.24 cm².

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