Question

The diameter of a semicircle is 10 centimeters. What is the semicircle's area?use 3.14 for pi

Answer 1

Here is your answer.

Explanation:

The diameter of the semicircle is given as 10 centimeters. The radius of the semicircle is half of the diameter, so:

Radius = Diameter / 2

Radius = 10 cm / 2

Radius = 5 cm

Now, let's calculate the area of the semicircle using the formula for the area of a semicircle:

Area = (π * Radius^2) / 2

Given that you want to use 3.14 for π, we can substitute the values and calculate:

Area = (3.14 * 5 cm * 5 cm) / 2

Area = (3.14 * 25 cm^2) / 2

Area = 39.25 cm^2

So, the area of the semicircle is 39.25 square centimeters.

Answer 2

Answer: 39.25 centimeters²

Explanation:

We can use the given formula for a semicircle's area. The radius is equal to half the diameter, so this semicircle has a radius of 5 yards.

Given formula:

`(1)/(2)`(πr²)

Substitute known values:

`(1)/(2)`((3.14)(5 cm)²)

Square:

`(1)/(2)`((3.14)(25 cm²))

Multiply:

`(1)/(2)`(78.5 cm²)

Multiply:

39.25 centimeters²