Calculate the area of a circle with a radius of 7 cm (use π ≈ 3.14).
Correct Answer: 153.86 cm²
- Step 1: Identify the radius of the circle. The radius is given as 7 cm.
- Step 2: Use the formula for the area of a circle, which is Area = π × radius².
- Step 3: Substitute the value of π with 3.14 and the radius with 7 cm into the formula: Area = 3.14 × (7 cm)².
- Step 4: Calculate (7 cm)², which is 7 cm × 7 cm = 49 cm².
- Step 5: Now substitute this value back into the formula: Area = 3.14 × 49 cm².
- Step 6: Multiply 3.14 by 49 cm² to find the area: Area = 153.86 cm².
- Area of a Circle – The area of a circle is calculated using the formula A = π × r², where r is the radius.
