OpenStudy (anonymous):

how to get the area of parallelogram ABCD? with a base of 4 *area of parallelogram Efgh=171 with a base of ten

5 years ago
OpenStudy (oaktree):

Diagram please?

5 years ago
OpenStudy (anonymous):

sure

5 years ago
OpenStudy (anonymous):

|dw:1337648812229:dw|

5 years ago
OpenStudy (oaktree):

Are they similar?

5 years ago
OpenStudy (anonymous):

it is the same shape just bigger *

5 years ago
OpenStudy (oaktree):

So they're similar.

5 years ago
OpenStudy (oaktree):

So if the bases are 4/10, then the heights are x/17.1 --> then x=6.84, so the area is 4(6.84) = 27.36

5 years ago
OpenStudy (anonymous):

im thinking 17.1 comes from the area of the bigger shape but how did you get 6.84

5 years ago