in a certain parallelogram the degree measure of one angle exceeds that of the other by 20 what is the degree measure of the smaller angle?  Choose the correct choice.
A) 75	B) 80	C) 85	D) 90	E) 95
<gadget id="calculator">3_600 / 10</gadget>
<output>360</output>

<gadget id="calculator">20 * 2</gadget>
<output>40</output>

<gadget id="calculator">360 - 40</gadget>
<output>320</output>

<gadget id="calculator">320 / 4</gadget>
<output>80</output>

<result>B</result>
in a certain parallelogram the degree measure of one angle exceeds that of the other by 20 what is the degree measure of the smaller angle?
divide(subtract(divide(const_3600, const_10), multiply(20, const_2)), const_4)
"in a parallelogram opposite angles are equal and the angles at each side are supplementary to each other ( supplementary angles are two angles that add up to 180 ° ) . given : x + ( x + 20 ) = 180 - - > x = 80 . answer : b ."