Question

The sides of a parallelogram have lengths of 15.6cm and 44 cm.if one of the angles is 42.6 degrees,find (a) the length of the shorter diagonal and (b) the area of the parallelogram

Answer 1

@ikram002p @BTaylor see what im doing vinz

Answer 2

you put @ in front of the users name to make it highlighted

Answer 3

@luvalpaca oh ok

Answer 4

the they get a notifly that u metioned them like this @vinz434

Answer 5

cool u got it ur qiuck learner ok so about ur question, usaully what helps is say INEED HELP ILL MEDAL AND FAN,

Answer 6

the post that then ask question

Answer 7

where do i type ? here?

Answer 8

actually, i still dont know anyone except you

Answer 9

medal means best response, rememebr that it helps others then when u help others they will help so close this question and make the smae one so its freash

Answer 10

its cool bruh start fanning people u want to

Answer 11

where can i see people?

Answer 12

you see home next to invite on ur top screen press it and scroll down, hover over a players name to fan them.

Answer 13

oh o tnx

Answer 14

heard of "cosine law " before ?

Answer 15

yeah ive heard it befor but, i kind of forgot

Answer 16

*before

Answer 17

time to remember it again :)

Answer 18

cool i usually fan people who help cuz there nice enough to help XD Thanks 4 helping him friends

Answer 19

^_^

Answer 20

\(\large c^2 = a^2 + b^2 - 2ab \cos (C)\)

http://www.mathsisfun.com/algebra/trig-cosine-law.html

Answer 21

have a look and make urself at peace wid it a bit..

Answer 22

ok

Answer 23

dude, is the answer 22.91?

Answer 24

wait dude we gotta pray

Answer 25

try again

Answer 26

http://www.wolframalpha.com/input/?i=x%5E2+%3D+15.6%5E2+%2B+44%5E2+-+2*15.6*44*cos%2842.6%29&a=TrigRD_D

Answer 27

it aint 44 its 33

Answer 28

sorry i typed it wrong

Answer 29

thats why, its 33

Answer 30

http://www.wolframalpha.com/input/?i=x%5E2+%3D+15.6%5E2+%2B+33%5E2+-+2*15.6*33*cos%2842.6%29&a=TrigRD_D

Answer 31

why!!!! i cant get it i solved many times but i just cant get it,, bdw if it type 42.6 the input i see is 42.60

Answer 32

42.6 and 42.60 are same right ?

Answer 33

answer for part a is 24

Answer 34

oh so the shorter diagonal is 24?

Answer 35

can i get your solution please?

Answer 36

^click that link

Answer 37

where?

Answer 38

http://www.wolframalpha.com/input/?i=x%5E2+%3D+15.6%5E2+%2B+33%5E2+-+2*15.6*33*cos%2842.6%29&a=TrigRD_D

Answer 39

still cant get the desired result
my result is 555.86 :(

Answer 40

hey can i ask?

Answer 41

when i put cos 42.6degrees in my calculator why is it different compared to the solutions here?

Answer 42

my answer is 3