Question

The coordinates of the vertices of a rectangle are (−4, 3) , (−1, 5) , (3, −1) , and (0, −3) .

What is the perimeter of the rectangle? Round each step to the nearest tenth.

Enter your answer as a decimal in the box.

Answer 1

@Vocaloid

Answer 2

best idea would be to plot the points

Answer 3

i think we have to use distance formula or somethign like that

Answer 4

first calculate the distance between (-1,5) and (-4,3) using the distance formula

Answer 5

i see thank you but do you know how we get the perimeter

Answer 6

just calculate the distance of one short side and one long side

add the short side + long side, then double your result

Answer 7

^ final answer should be perimeter

Answer 8

ohh ok

so i got 10.8 am i correct ?

Answer 9

i used the distance formula for AB
then BC

then added them

Answer 10

was what i did correct ?

Answer 11

let me check your calculations

Answer 12

okie

Answer 13

you're almost there, you just need to double 10.8 to get 21.6 since there are 4 total sides

Answer 14

ohhh

Answer 15

10.8 is the sum of two adjacent sides, but a rectangle has 4 so we must double this

Answer 16

so 21.6 is your answer

Answer 17

wow thnx !!