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Mathematics 8 Online
OpenStudy (acespeedfighter):

(05.02) The area of the parallelogram below is_____ square meters.

OpenStudy (acespeedfighter):

OpenStudy (acespeedfighter):

@Hashtag209 i cant do it XD

OpenStudy (acespeedfighter):

i did 6 other wuestions got them right eccept for 1 and now im stuck with dis one

OpenStudy (joker):

All you have to do is multiply 9 x 7

OpenStudy (acespeedfighter):

but what about the 2?

OpenStudy (hashtag209):

Haha yes you can! The area of a parallelogram is A = Base x Height. In that photo, you have the base in two parts. It shows you the left side of it and the right side of it. Don't be confused by one being labelled at the top. So you'd add 2+9 = 11. So the entire base is 11. Now multiply 11 x the height to get the Area

OpenStudy (joker):

It's not necessary It's just there, because the top base is the same length as the bottom base, which is 9

OpenStudy (hashtag209):

Wait... that's not completely right.

OpenStudy (acespeedfighter):

so the height is 7 so 11x7

OpenStudy (hashtag209):

Joker is right lol

OpenStudy (acespeedfighter):

k I GOT IT WRONG

OpenStudy (joker):

9 x 7 not 11

OpenStudy (acespeedfighter):

i went with hashtag and got it wrong ;-;

OpenStudy (hashtag209):

But wait.. 9 x 7 leaves out the left triangle that makes up the rest of the rectangle doesn't it?

OpenStudy (joker):

No it doesn't

OpenStudy (acespeedfighter):

im confused

OpenStudy (hashtag209):

Nevermind. I see it now.. excuse me. I've been awake for far too long to be doing math lol Joker is right. Don't listen to me

OpenStudy (joker):

All you have to do is multiply base x height 9 x 7 = ?

OpenStudy (acespeedfighter):

EQUALS 45

OpenStudy (joker):

No.

OpenStudy (acespeedfighter):

i know 63 XD

OpenStudy (joker):

So the area is 63.

OpenStudy (acespeedfighter):

Im not dumb

OpenStudy (acespeedfighter):

so dats the answer :D

OpenStudy (joker):

Yes.

OpenStudy (acespeedfighter):

But i got it wrong anyways for going with hashtag XD X<

OpenStudy (hashtag209):

I'm sorry, Ace. I didn't mean to confuse you. I over-thought it. Simple mistake on my part.

OpenStudy (acespeedfighter):

its fine dude XD

OpenStudy (acespeedfighter):

A doghouse is to be built in the shape of a right trapezoid, as shown below. What is the area of the doghouse? (4 points) 32.5 square feet 40 square feet 187.5 square feet 375 square feet

OpenStudy (joker):

It's alright. People make mistakes. Pretty sure Hashtag learned from his/her mistake. :)

OpenStudy (acespeedfighter):

This is kinda hard

OpenStudy (acespeedfighter):

wait its 5*5 What am i saying

OpenStudy (acespeedfighter):

its 25 right

OpenStudy (joker):

No

OpenStudy (acespeedfighter):

or....

OpenStudy (joker):

\[\dfrac{b_1+b_2}{2}*h\]

OpenStudy (acespeedfighter):

simpify it

OpenStudy (joker):

This time, you add 3 + 5 because it's not a parallelogram. B1 = 5 B2 = 5 + 3 H = 5

OpenStudy (acespeedfighter):

simplify*

OpenStudy (joker):

\[\dfrac{5+(5+3)}{2}*5\]

OpenStudy (acespeedfighter):

sso 5x8

OpenStudy (acespeedfighter):

hmm

OpenStudy (acespeedfighter):

so 13x5

OpenStudy (joker):

No

OpenStudy (acespeedfighter):

i dont understand it yet

OpenStudy (acespeedfighter):

:-;

OpenStudy (hashtag209):

Joker - why wouldn't you just find the area of the triangle and then the area of the rectangle and then add them together?

OpenStudy (joker):

Add then divide by 2, after that multiply by 5.

OpenStudy (acespeedfighter):

6x5

OpenStudy (joker):

Just showing the formula of the trapezoid because you don't always get a triangle.

OpenStudy (acespeedfighter):

6R1x5

OpenStudy (hashtag209):

True, but if you do it your way and then do it my way, you get two different answers.

OpenStudy (joker):

I get the same answer your way and my way.

OpenStudy (hashtag209):

So you're saying 5+3 = 8 8/2 = 4 4x5=20 Right? Because that's not what I'm getting if I do it my way.

OpenStudy (joker):

No, \[\dfrac{5+(5+3)}{2}*5\]

OpenStudy (hashtag209):

Ahh gotcha. I misread what you were typing then. Same answer I got. Thanks for clearing that up.

OpenStudy (acespeedfighter):

Wait so the asnwer is...

OpenStudy (acespeedfighter):

6x5?

OpenStudy (hashtag209):

No. Follow Jokers math right there. Just compute it.

OpenStudy (hashtag209):

Joker wrote out the problem. Just do the math.

OpenStudy (acespeedfighter):

how so 13divided by 2 so its 6 or is it 7

OpenStudy (hashtag209):

13 divided by 2 = 6.5 Then multiply that by 5

OpenStudy (acespeedfighter):

oh ok thx 32.5

OpenStudy (hashtag209):

There you go!

OpenStudy (acespeedfighter):

thank you ;D

OpenStudy (hashtag209):

Very welcome.

OpenStudy (acespeedfighter):

Im ur fan

OpenStudy (hashtag209):

:)

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