Question

Find the perimeter of a rectangle if three of its corners are (2.5,1.7), (2.5,-3.2), and (-0.7,-3.2).

Answer 1

add / subtract the coordinates to find the lengths (i.e. .25-(-.7) will give you 1 side). then if you cant find the perimeter, sad day

Answer 2

its 4.9*2+3.2*2 = 16.2

Answer 3

ugh ... id multiply it all by 10 to clear the fractions; then divide by 10 in the end to get the results

Answer 4

show me please

Answer 5

really though, messing with a multiple of 10 is trivial

Answer 6

i have never done these kind of problems

Answer 7

trivial yes; but sometimes it makes the problem more pleasant to the eyes :)

Answer 8

your finding the distances between points ....

Answer 9

the coordinates you're given are x and y coordinates on a graph. you're being given their location in space. you just have to find the distance between the 2 locations to get a sides length. i did that up earlier for you m8

Answer 10

so if i graph them I caould find the answer?

Answer 11

you know what, yes.

Answer 12

that could help u learn what this is all about

Answer 13

you could also add .7 from your xs and add 3.2 to your ys :)

Answer 14

graph it, draw the rectangle, then figure out the distances between the points. the visual aide should really help your comprehension

Answer 15

thanks

Answer 16

(2.5,1.7), (2.5,-3.2), (-0.7,-3.2)
.7 3.2 .7 3.2 .7 3.2
-----------------------------
(3.2,4.9), (3.2 , 0), ( 0, 0)
^^^^^^
this one gives us our lengths .. maybe :)

Answer 17

we can double it and add it together

2(3.2,4.9) = (6.4,9.8)

6.4
+9.8
----
16.2 .. if i did it right