Posted by Aaron on Thursday, August 8, 2013 at 5:22pm.
If m <DCE=4x+15 and m<ECF=6X5 ,find m<DCE

Math  Henry, Thursday, August 8, 2013 at 6:19pm
The angles are assumed to be complimentary(sum=90o).
DCE + ECF = 90o
4x+15 + 6x5 = 90
10x + 10 = 90
10x = 80
X = 8
DCE = 4*8 + 15 = 47o

geometry  catalina, Tuesday, September 29, 2015 at 10:27am
Álgebra if a supplement of an angle has a measure 78 less than the measure of the angle,what are the measures of the ángeles?
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