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Mathematics 11 Online
OpenStudy (lizz123):

Medal @sdfgsdfgs http://prntscr.com/74x7eq

OpenStudy (lizz123):

I dont get it at all.

OpenStudy (sdfgsdfgs):

this one is the same as the last...which side u having trouble w?

OpenStudy (lizz123):

I don't get at all

OpenStudy (sdfgsdfgs):

just like last one, 2 tri n 3 rect right?

OpenStudy (lizz123):

Will one of the triangles be 60

OpenStudy (lizz123):

And yes it will be like the last one

OpenStudy (lizz123):

So I am guessing that Triangle 1=60

OpenStudy (lizz123):

one of the rectangles is 110

OpenStudy (sdfgsdfgs):

nope in this case, the height of the triangle is given as a separate dimension...but u can calculate it using the same formula b*h/2...

OpenStudy (lizz123):

So how do I do that?

OpenStudy (sdfgsdfgs):

ahhh i think i see where u have trouble - the 8 mile length is for the red line...

OpenStudy (lizz123):

yea that is what I am have trouble

OpenStudy (sdfgsdfgs):

n the red line would be the ? of the triangles?

OpenStudy (lizz123):

so do I have to use the Pythagorean theorem

OpenStudy (sdfgsdfgs):

nope u just need to find the area of the triangles....their base is 12 and their height is....

OpenStudy (lizz123):

11?

OpenStudy (sdfgsdfgs):

look again plz? O^O

OpenStudy (lizz123):

It is 8

OpenStudy (sdfgsdfgs):

guess those glasses O^O help :P yes, 8 is the height....all set for now or need more help?

OpenStudy (lizz123):

Do i multiply 12 and 8

OpenStudy (sdfgsdfgs):

area of triangle = b* h / 2

OpenStudy (lizz123):

WHich is 48

OpenStudy (sdfgsdfgs):

correct n x2 cuz' there are two triangles...now onto the rectangles...look carefully n u should be all set!

OpenStudy (lizz123):

SO triangle 1 and triange 2 is 48 rectangle 1=132 rectangle 2= 110 rectangle 3= 100?

OpenStudy (sdfgsdfgs):

110 is right n need to check the other 2 plz

OpenStudy (lizz123):

so would one of the triangles be 80

OpenStudy (lizz123):

i mean rectangles

OpenStudy (sdfgsdfgs):

nope...the red line does not show in any rectangle

OpenStudy (lizz123):

But 12 and 11 is a rectangle which equals 132

OpenStudy (sdfgsdfgs):

oooooo sorry yes, 132 is right....

OpenStudy (sdfgsdfgs):

n the last rect area is....

OpenStudy (lizz123):

110

OpenStudy (sdfgsdfgs):

BINGO :) u got it!

OpenStudy (lizz123):

thanks

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