What is the area of the polygon?
http://static.k12.com/calms_media/media/1567000_1567500/1567386/1/700396b348db2971ba7a8fa343182005ddb7be94/MS_IMB-1401012-1100705.jpg
A.
134 cm2
B.
170 cm2
C.
202 cm2
D.
238 cm2
I WILL MEDAL AND FAN!!!!!
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area of a parallelogram = base * height.
area of a triangle = 1/2 8 base * height
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OpenStudy (anonymous):
do i do that then add?
OpenStudy (anonymous):
or multiply
OpenStudy (anonymous):
???
OpenStudy (butterflydreamer):
yep :)! you add the two together
OpenStudy (jhannybean):
find the base of the triangle, then you'll have the total base.
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OpenStudy (anonymous):
okay, i'll tag you and tell u what i get (this might be a bit :)
OpenStudy (butterflydreamer):
no problem :) give it your best shot
OpenStudy (anonymous):
is "8 base" just 8
OpenStudy (anonymous):
I got d
OpenStudy (butterflydreamer):
6 will be the height in the parallelogram.
8 will be the height in the triangle.
the base will be the same for both the parallelogram and triangle (17)
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OpenStudy (anonymous):
am i right??
OpenStudy (jhannybean):
|dw:1427505820809:dw| that's whatI was thinking.
OpenStudy (anonymous):
okay, i got d, is that correct??
OpenStudy (jhannybean):
Not sure if it's needed.
OpenStudy (butterflydreamer):
it's not quite d :)
use the information and formulas i've given to you to work out the question
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OpenStudy (anonymous):
OOOOOOOHHHHHHHH, i know it is c @butterflydreamer
OpenStudy (anonymous):
i know what i did wrong
OpenStudy (butterflydreamer):
hang on xD
Let's do it slowly :)
Firstly let's find the area of the parallelogram = base * height.
We know base = 17, height = 6
SO area of the parallelogram = ?
Then let's find the area of the triangle = 1/2 * base * height
Base = 17, height = 8
SO area of the triangle = ?
Then add the two together :)
OpenStudy (anonymous):
Thanks Zara!
OpenStudy (anonymous):
17 x 6 = 102
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OpenStudy (butterflydreamer):
yep :)
OpenStudy (butterflydreamer):
and then the area of the triangle would be?
OpenStudy (anonymous):
136
OpenStudy (anonymous):
does the 1/2 mean that I have to divide it by 2
OpenStudy (butterflydreamer):
yep :)
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OpenStudy (anonymous):
if so, then that would be 68
OpenStudy (anonymous):
170
OpenStudy (butterflydreamer):
yaaass! :D
So now we add the two together! :)
OpenStudy (anonymous):
I GOT IT< THANK YOU U R THE BEST
OpenStudy (butterflydreamer):
Fantasticccc ^_^!
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