Question

ABCD is a rhombus with diagonals intersecting at E. If m

Answer 1

*ABCD is a rhombus with diagonals intersecting at E. If m<ABC = 4m<BAD, find m<EBC.
Well, your question is a bit incomplete that makes it worse to give you exactly what you need. But, according to the fact that diagonals intersecting, all the angles =360 degrees.
Suppose
`\ \textless \ BAD=x`. and
`\ \textless \ ABC=4x`
which means that opposite ones are equal
so, the solution is :

`2(x+4x)=360`
or could be
`10x= 360 x=36`
So, we have : <BAD=36 and <ABC=144
And the answer is : 4m+m=180.
Do hope you will find it helpful!