Cell Phone Tower Geometry

The video tutorial explores a circle-related word problem involving a cell phone tower with a 12-mile radius. The tower is located at (-3, 5) on a coordinate plane. The tutorial guides viewers through writing the standard equation of the circle and determining if a point (8, 0) is within the coverage area using the distance formula. The calculated distance is 12.08 miles, slightly exceeding the 12-mile radius, indicating the point is outside the coverage area.

What is the radius of the service area for the cell phone tower?

• 10 miles

• 20 miles

• 15 miles

• 12 miles

Tags

CCSS.6.NS.C.6B

Where is the cell phone tower located on the coordinate plane?

• (3, -5)

• (0, 0)

• (-3, 5)

• (5, -3)

Tags

CCSS.HSG.GPE.A.1

What is the standard form equation of the circle representing the service area?

• (x - 3)^2 + (y - 5)^2 = 144

• (x + 3)^2 + (y + 5)^2 = 144

• (x + 3)^2 + (y - 5)^2 = 144

• (x - 3)^2 + (y + 5)^2 = 144

Tags

CCSS.HSG.GPE.A.1

What is the radius of the circle in the equation derived?

• 16

• 10

• 12

• 14

Tags

CCSS.HSG.GPE.A.1

What is the purpose of using the distance formula in this problem?

• To determine if a point is inside the circle

• To calculate the area of the circle

• To find the radius of the circle

• To locate the center of the circle

Tags

CCSS.HSG.GPE.B.7

What is the distance formula used in this context?

• √((x2 - x1)^2 + (y2 - y1)^2)

• √((x2 - x1)^2 - (y2 - y1)^2)

• √((x2 + x1)^2 - (y2 + y1)^2)

• √((x2 + x1)^2 + (y2 + y1)^2)

Tags

CCSS.HSG.GPE.B.7

What is the calculated distance from the center to the point (8, 0)?

• 12.08 miles

• 12 miles

• 13 miles

• 11.5 miles

Tags

CCSS.5.G.A.2

Is the point (8, 0) inside the service area of the tower?

• It cannot be determined

• Yes, it is inside

• It is exactly on the boundary

• No, it is outside

Tags

CCSS.5.G.A.2

What is the significance of the distance being 12.08 miles?

• It is equal to the radius

• It is less than the radius

• It is greater than the radius

• It is irrelevant

Tags

CCSS.HSG.GPE.A.1

What conclusion can be drawn from the distance calculation?

• The point is irrelevant

• The point is on the circle

• The point is outside the circle

• The point is within the circle

Tags

CCSS.HSG.GPE.A.1