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Mathematics 8 Online
OpenStudy (marcellesitt):

Given ABCD and D = 145, what is the measure of B? A. 145 B.35 C. 90 D. 235 E. 10 F. 55 DEGREES

OpenStudy (amruta1202):

Is there any special property of the quadrilateral mentioned in the qn which u have failed to specify?

OpenStudy (marcellesitt):

|dw:1467217753037:dw|

OpenStudy (amruta1202):

It looks like a parallelogram Is it ?

OpenStudy (marcellesitt):

|dw:1467217818948:dw|

OpenStudy (amruta1202):

Acc to ur figure the ans should be 145

OpenStudy (marcellesitt):

yes, its a parallelogram

OpenStudy (marcellesitt):

I don't understand how you would get the answer tho, is there a way you can explain it to me?

OpenStudy (amruta1202):

So by the property that opposite angles of a parallelogrm are equal angle D equals angle B so ans is 145 degrees

OpenStudy (marcellesitt):

Thank you so much!

OpenStudy (amruta1202):

👍🏻

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