Ask your own question, for FREE!
Mathematics 9 Online
OpenStudy (anonymous):

help plzz..ASAP

OpenStudy (anonymous):

|dw:1378329452705:dw|

OpenStudy (mathstudent55):

Are angles A and D right angles?

OpenStudy (mathstudent55):

If so, then prove the triangles congruent. Then use CPCTC and the segment addition postulate (definition of point between two points) to prove BE = FD.

OpenStudy (anonymous):

its nt mentioned in d question...bt i think it is

OpenStudy (anonymous):

so hw will v fyn ?? cn u shw me step by step

OpenStudy (mathstudent55):

Since AB and CD are pillars, then maybe BD is the ground and the pillars are perpendicular to the ground.

OpenStudy (mathstudent55):

I can't show you step by step bec I have no time now. Here's an outline of the proof: Use the HL theorem to prove triangles ABF and CDE congruent. Then use CPCTC to show sides BF and DE congruent. Then BE + EF = BF and EF + FD = ED both by seg addition postulate. Then set BE + EF = EF + FD and subtract EF from both sides.

OpenStudy (anonymous):

wat is HL theoram??? @mathstudent55 @M

OpenStudy (tkhunny):

HL is the Right Triangle version of SSS. Given two sides of a right triangle, the third side is fixed by the Pythagorean Theorem.

OpenStudy (anonymous):

hw do i do this problem..i hv no i dea...plzz help @tkhunny

OpenStudy (tkhunny):

Have we established that the pillars are vertical and the road is horizontal, making the angles at B and D Right Angles?

OpenStudy (anonymous):

juz say me hw to dio

OpenStudy (tkhunny):

If we don't know they are right angles, there is no such demonstration. If you cannot answer that question, you are done.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!