Question

Oh.. I need help with this also

Answer 1

Adjacent sides are supplementary,
<ADC + <DAE = 180°
<ADC + 30° = 180°
<ADC = 150°
:]

Answer 2

Tysm!

Answer 3

it was incorrect.

Answer 4

Ty for trying to help anyway.

Answer 5

Sorry, I don't know why :I

Answer 6

Well that's ok.

Answer 7

:((

Answer 8

I'll live :3

Answer 9

I'm sorry, I feel really bad about it! haha :p

Answer 10

Lol your fine! It's fine

Answer 11

Okaay haha :p

Answer 12

:3

Answer 13

:D

Answer 14

120

Answer 15

How?

Answer 16

180-30-30

Answer 17

But why?

Answer 18

look in triangle ADC, AD and AC are equal ... since it's a rhombus
that makes isosceles triangle, so angle ACD is also 30

so ACD + DAE + ACD = 180

Answer 19

:D

Answer 20

thanks for medal

Answer 21

Ty for explaining @experimentX