Answer:
only the third one
Step-by-step explanation:
Answer:
The angles of a parallelogram are 135°-45°-135°-45°
Step-by-step explanation:
we know that
In a parallelogram opposites angles are congruent and consecutive angles are supplementary
Remember that
The sum of a exterior angle and its interior angle is equal to 180 degrees
Let
x ----> the measure of one interior angle of parallelogram
y ----> the measure of the other interior angle of parallelogram
we have that
solve for x

<em>Find the measure of the other interior angle of parallelogram</em>
Remember that consecutive interior angles are supplementary

substitute the value of x

solve for y

therefore
The angles of a parallelogram are 135°-45°-135°-45°
For number 13 x=70 and y=115 hope this helped
Answer:
53+54+55+56
Step-by-step explanation:
I don't remember equation but I know this is the because I can roughly estimate the numbers by dividing by four and going from there
I think not sure I think -2 but if I had the whole answer to your question I might know more