x+y+z+w=360
x+y+z+ (x+y+z)/2=360
3(x+y+z)=720
x+y+z=720/3
check that
The degree measure of the four angles of a quadrilateral are w,x,y,and z respectively. If w is the average (arithemetic mean) of x,y,z, then x + y + z = ? Is it 90 degrees?
4 answers
240 degrees?
It's not on the multiple choice list.
It's either
180 or 270 or 120 degrees.
(45 at least)
It's not on the multiple choice list.
It's either
180 or 270 or 120 degrees.
(45 at least)
I think Bob has a typo in dividing x+y+z by 2 instead of 3
x+y+z+ (x+y+z)/3=360
3x+3y+3z + x+y+z = 1080
4x+4y+4z = 1080
x+y+z = 270
x+y+z+ (x+y+z)/3=360
3x+3y+3z + x+y+z = 1080
4x+4y+4z = 1080
x+y+z = 270
Thanks!
270 degrees is right.
Thought it was 180 .-.
270 degrees is right.
Thought it was 180 .-.