Asked by Losa

Can someone please help me do the following problems? I don't care for the answers, I just wanna know how to do this stuff. I am always forgetting how to do certain things in math.
1)ABCD is a rhombus with diagonals intersecting at E. If m<ABC= 4m<BAD, find m<EBC.

2)The length of the median of trapezoid EFGH is 17 centimeters. If the bases have lengths 2x+4 and 8x-50, find x.

3) If the slope AB is 1/2, the slope of BC is -4, and the slope of CD is 1/2, find the slope of DA so that ABCD is a parallelogram.
Answered by Losa
This are the ones I still can't figure out how to do.
Answered by Losa
Oh, nevermine about #3...it's easy. I already figured out by reading it again. Sorry. It's just the other two I don't know how to solve
Answered by To anonymous
2. Median of trapezoid = Sum of bases divided by 2

2x+4+8x-50/2=17
10x-46/2=17
5x-23=17
5x=17+23
5x=40
------> x=8

Checking:
2(8)+4 + 8(8)-50 =17
16+4 + 64-50 = 17
20+14 = 17
34/2= 17
17=17
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