Question

for each part, just put the number. dont put x = # or a degree symbol or the word degree or the words, \i got...\ what is the value of x? what is the measure of the angle with the red arrow pointing at it? what is the measure of the angle with the blue arrow pointing at it?

Explanation:

Step1: Use angle - relationship property

In a parallelogram, adjacent angles are supplementary, so $5x + 4x=180$.

Step2: Solve the equation for $x$

Combine like - terms: $9x = 180$. Then $x=\frac{180}{9}=20$.

Step3: Find the measure of the red - arrowed angle

The red - arrowed angle is $4x$. Substitute $x = 20$ into $4x$, we get $4\times20 = 80$.

Step4: Find the measure of the blue - arrowed angle

The blue - arrowed angle is $5x$. Substitute $x = 20$ into $5x$, we get $5\times20 = 100$.

Answer:

20
80
100