Question

Find the sizes of the angle of parallelogram if one angle is 20°less than twice the smallest angle

Answer 1

the total angle measured in a parallelogram is 360
let one angle be x
smallest angle should be
y
then the equation should look like
this
x=2y-20
in a parallelogram,
the adjacent angles form an angle of 180
so the angle which we took can be anything
but the adjacent angle + then angle we took is equal to 180
the adjacent angle is y
the equation formed is
y+x=180
find y
x=180-y
substitute this y in the first equation
thus the equation formed is
180-y=2y-20
210=3y
y=70
if we substitute this in the second equation
we get,
x+70=180
x=110
hope this helps.
mine as the brainlliest