Question

Hi can u plzz help me with these thank you!!!

Answer 1

Answer:

1.

$Radius = 5ft$

$Circumference = 31.4\ ft$

2.

$Perimeter = 25.12\ ft$

Step-by-step explanation:

Solving (1):

Given

$Diameter = 10ft$

Required

Determine the radius and circumference

Radius is calculated as follows:

$Radius = \frac{1}{2} * Diameter$

$Radius = \frac{1}{2} * 10ft$

$Radius = 5ft$

The circumference is calculated using:

$Circumference = 2 * \pi * Radius$

$Circumference = 2 * 3.14 * 5ft$

$Circumference = 31.4\ ft$

Solving (2):

Given

$R = 4ft$

Assume that the window is circular, the perimeter is calculated as follows:

$Perimeter = 2 * \pi * R$

$Perimeter = 2 * 3.14 * 4ft$

$Perimeter = 25.12\ ft$