Get the information you need quickly and easily with IDNLearn.com. Discover prompt and accurate answers from our experts, ensuring you get the information you need quickly.

The sum of the measures of the angles of the parallelogram is 360 degrees. In the parallelogram angles A and D have the same measure as well as angles C and B. If the measure of angle C is four times the measure of angle A find the measure of each angle

Sagot :

A and D have the same measure, let's call that x
C and B have the same measure, let's call that y
That would mean 2x+2y=360
Since C is equal to 4 times A, that means y=4x
2x+2(4x)=360
2x+8x=360
10x=360
x=36
A and D both equal 36 degrees
B and C both equal 36 times 4, or 144 degrees
[tex]\angle A=\angle D\\ \angle C=\angle B\\\\ 4\angle A=\angle\ C\\\\ \angle A+\angle B+\angle C+\angle D=360\\ \angle A+\angle A+4\angle A+4\angle A=360\\ 10\angle A=360\ \ |Divide\ by\ 10\\ \angle A=36^{\circ}\\\\ \angle D=36^{\circ}\\\\ \angle B=144^{\circ}\\\\\angle C=144^{\circ}[/tex]