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Mathematics 12 Online
OpenStudy (anonymous):

HELP!! **PROOF** I GIVE MEDALS ;) Given:∠4≅∠5 Prove:m∠2+m∠3=90º 1):∠4≅∠5---->Given 2)a is perpendicular to b---->___?____ 3)___?_____----->____?____ 4)m∠2+m∠3=90º----->Definition of a right angle

OpenStudy (anonymous):

|dw:1365529710256:dw|

jhonyy9 (jhonyy9):

so there is firstly that a is perpendicular to b what mean that make an angle with 90 degree so from this result that indifferent how many angles formed inside the line a and b their sum always will be 90 degree

jhonyy9 (jhonyy9):

hope so much that is understandably

OpenStudy (anonymous):

I understand that

jhonyy9 (jhonyy9):

ok secondly proof if you like it again so there is a line a what mean that - what you know sure - that make - has an angle of 180 degree if you draw a second line what is intersecting the first and these two angles so like on your draw make angles equales so than this mean that these two angles need being with 90 degree what is eaxctly 180 divide 2 =90 ok ?

jhonyy9 (jhonyy9):

and what mean too again that this secondly line is perpendicular on the first line

jhonyy9 (jhonyy9):

ok ?

OpenStudy (anonymous):

yes I get that

OpenStudy (anonymous):

ill brb

jhonyy9 (jhonyy9):

brb what mean ?

OpenStudy (anonymous):

be right back lol

jhonyy9 (jhonyy9):

im not sure

jhonyy9 (jhonyy9):

ok

OpenStudy (anonymous):

back @jhonyy9

jhonyy9 (jhonyy9):

yes

OpenStudy (anonymous):

ok so i understand how u got a perpendicular to b

OpenStudy (anonymous):

thanks for the help i understand how to gt the rest :)

jhonyy9 (jhonyy9):

yw was my pleasure

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