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Topic: HELP ME PLZ
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nessickum

Posts: 1
Registered: 6/8/06
HELP ME PLZ
Posted: Jun 8, 2006 3:45 PM
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Look at the figure below. Given that AF ? BD, solve for x and y.




If AF ? B, then m FED = 90 and m FEB= 90.

To find x , we need to determine the measures of the complementary angles FEC and CEB

To find x , we need to determine the measures of the complementary angles FEC and CEB

m FEB = m FEC + m CFD Sum of parts = whole
90 = 3x + x Substitution
90 = 4x Add.
22.5 = x Divide each side by 4.

To find y , we need to determine m FED. Since we know that AF ? B , we know that m FED = 90 °.

m FED = y + 20 Given
90 = y + 20 Substitution
70 = y Subtract 20 from each side.



CAN YOU PLZ EXPLAIN THIS 2 ME



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