The measure of one interior angle of a parallelogram is 30 degrees more than 2 times the measure of another angle. Find the measure of each angle.

Step-by-step explanation:

α   - one angle

2α   - two times measure of angle α

2α + 30°    - second angle

Paralleogram has two pairs of angles of the same measure.

Sum of interior angles of any quadrangle is 360°

Therefore:

2×α + 2×(2α + 30°) = 360°        {divide both sides by 2}

α + 2α + 30° = 180°                 {subtract 30° from both sides}

  3α = 150°                        {divide both sides by 3)

      α = 50°

2α+30° = 2×50° + 30° = 130°

none.

step-by-step explanation:

m

1

=

5

m1=5

b

=

−

1

b=-1

find the slope and y-intercept of the second equation.

tap for more

m

2

=

0

m2=0

b

=

−

6

b=-6

compare the slopes

m

m of the two equations.

m

1

=

5

,

m

2

=

0

m1=5,m2=0

compare the two slopes in the decimal form. if the slopes are equal, then the lines are parallel. if the slopes are not equal, then the lines are not parallel.

m

1

=

5

,

m

2

=

0

m1=5,m2=0