Question

need help will fa and medal

What is the perimeter of triangle JKL?


Round your answer to the nearest tenth.


A.
8.6 units

B.
9.6 units

C.
10.5 units

D.
11.5 units



http://static.k12.com/calms_media/media/1422500_1423000/1422759/2/408316f8901b7ab95229c75f500b4340439d7eb0/MS_PA_131002_171208.jpg

Answer 1

k12 :O

Answer 2

yea y?

Answer 3

find the distance between each point and add it together to get the perimeter.
K to J = 3 - (-1) = ?
L to K = 4 - 2 = ?

Answer 4

i also use k12

Answer 5

:OOOO

Answer 6

i got 2 and -4 o.o

Answer 7

i know its funny

Answer 8

mmm close enough :P

then pythagorean theorem -> a^2 + b^2 = c^2
so (2)^2 + (-4)^2 = c^2 find c

Answer 9

so its 10.5

Answer 10

im really bad at math

Answer 11

so 2x2??

Answer 12

(2)^2 + (-4)^2 = c^2
-> c = √(4+16) = √20

so perimeter = 2 + 4 + √20

Answer 13

so i solve taht and i get my answer?

Answer 14

yeah plug (2 + 4 + √20) into your calculator...

Answer 15

thats -20 right

Answer 16

huh?

Answer 17

i got 26

Answer 18

√20 = about 4.47

Answer 19

http://www.wolframalpha.com/input/?i=2+%2B+4+%2B+%E2%88%9A20

Answer 20

ty

Answer 21

@linn99123 C?

Answer 22

lol im trying to comprehend this hun xD

Answer 23

Wahts the lesson called ill go back and see if i can reviwe and get the nswer

Answer 24

okay yea its C

Answer 25

You in 8th grade k12? It's unit 1 lesson 5 The Distance Formula Quiz

Answer 26

Its c hunney

Answer 27

kk thx!

Answer 28

i know linn99123 from brainly.com