Can someone please...please help with three questions?
http://gyazo.com/78c1927012defc176f41d5e4dfb8384b

http://gyazo.com/30283d7b4d98852d0c476ea8688854a6

http://gyazo.com/52115cace11b39a54b0ce0dd6ffe190f

Question

Can someone please...please help with three questions?
http://gyazo.com/78c1927012defc176f41d5e4dfb8384b

http://gyazo.com/30283d7b4d98852d0c476ea8688854a6

http://gyazo.com/52115cace11b39a54b0ce0dd6ffe190f

mathstudent55 · Answer

1. The diagonals of a kite are perpendicular.

anonymous · Answer

Oooh..alright..

anonymous · Answer

But like, I don't know what to do. ;;

jim_thompson5910 · Answer

hint: because we have a kite, we can say

triangle ADC = triangle ABC

anonymous · Answer

..Uhm...I don't know how that will help, honestly..

anonymous · Answer

I'm extremely bad at math.

jim_thompson5910 · Answer

break up the kite into these two triangles

|dw:1368509005190:dw|

anonymous · Answer

Alright, so we have two triangles that are identical?

jim_thompson5910 · Answer

these two angles are congruent (by CPCTC)

|dw:1368509075439:dw|

anonymous · Answer

Alrighty..

jim_thompson5910 · Answer

now focus on the upper left triangle 

|dw:1368509115962:dw|

anonymous · Answer

Okay.

jim_thompson5910 · Answer

these two angles are complementary

|dw:1368509140025:dw|

so they add to 90 degrees

anonymous · Answer

Alright, I think I get that..

jim_thompson5910 · Answer

ok great

jim_thompson5910 · Answer

I'll do one more

anonymous · Answer

Alright, thanks..

jim_thompson5910 · Answer

|dw:1368509256133:dw|