Question

A circle has a diameter of 80 cm the radius of the circle is _____in order to find the area of the circle use the formula _____ the area of the circle is _____

Answer 1

Explanation:

`\textsf{A circle has a diameter of 80 cm. The Radius of the circle is \underline{40 cm}.}`

`\textsf{The Radius is always 1/2 of the Diameter due to the Radius starting from the \underline{center}.}`

`\textsf{The Diameter starts on an endpoint and ends on an endpoint, making the distance }`

`\textsf{\underline{twice as much} than the Radius.}`

`\textsf{In order to find the area of the circle, use the formula;} \ \mathtt{Area = \pi(radius)^(2)}`

`\textsf{The Radius is used to identify the area of the inside of a circle.}`

`\textsf{Let's use our formula to find the area of the circle.}`

`\large\underline{\textsf{Substitute:}}`

`\mathtt{Area=\pi(40)^2}`

`\mathtt{Area=1600\pi}`

`\large\boxed{\mathtt{Area \approx 5027cm^(2)}}`