Posted by **Aaron** on Thursday, August 8, 2013 at 5:22pm.

If m <DCE=4x+15 and m<ECF=6X-5 ,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 + 6x-5 = 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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