Question

DeShawn is designing a picture frame. He plots the frame on the coordinate grid below.

On a coordinate plane, point A is at (negative 1, 3), point B is at (negative 3, negative 3), and point C is at (1, negative 3).


He plans to line edge Line B C with a special piece of molding. If each unit on the grid represents 5 inches, what is the length of the molding he will need?

4 inches

9 inches

20 inches

25 inches

Answer 1

Answer:The asnwer is 20 inches

Explanation:

Edge2020

Answer 2

20 inches

Explanation:

Find the distance BC

we know that

the formula to calculate the distance between two points is equal to

`d=\sqrt{(y2-y1)^(2)+(x2-x1)^(2)}`

we have

B(-3,-3),C(1,-3)

substitute

`BC=\sqrt{(-3+3)^(2)+(1+3)^(2)}`

`BC=\sqrt{(0)^(2)+(4)^(2)}`

`BC=4\ units`

Remember that

each unit on the grid represents 5 inches

so

Multiply the distance in units by 5

`BC=4(5)=20\ in`