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Mathematics 11 Online
OpenStudy (anonymous):

What is the area of the figure? A. 360 km² B. 432 km² C. 720 km² D. 864 km²

OpenStudy (jmartinez638):

The area of the figure would be the area of the rectangle in the picture plus the area of the triangle. Do you know how to find the area of the triangle?

OpenStudy (anonymous):

@Jaynator495

OpenStudy (anonymous):

I think the answer is C but im not entirely sure. what grade is this?

OpenStudy (anonymous):

6th grade @Queen2002

OpenStudy (anonymous):

@Queen2002

OpenStudy (anonymous):

i think its A.

OpenStudy (anonymous):

@phi

OpenStudy (phi):

First step: do you know the formula for the area of a rectangle?

OpenStudy (anonymous):

yes. base times hight

OpenStudy (phi):

next step: look at the picture. do you see numbers for the base and height ?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

12 km is the hight and the base is 36-24

OpenStudy (anonymous):

36-24=12

OpenStudy (anonymous):

so 12x12=144

OpenStudy (phi):

do you see numbers next to the sides of the rectangle? 12 looks ok for the height. for the base, I would use the length of the bottom side. we are finding the area of this |dw:1446584001809:dw|

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