Answer:
21°
Step-by-step explanation:
All angles in a triangle add up to 180°.
180 - 31 - 128
= 21
The measure of the third angle is 21°.
Answer:
a. 6/18
b. 12/18
Step-by-step explanation:
In the triangle ABE
step 1
Find out the measure of angle AEB
m by form a linear pair
mm
step 2
Find out the measure of angle ABE
m by alternate interior angles
step 3
Find out the measure of angle x
Remember that
The sum of the interior angles in any triangle must be equal to 180 degrees
so
msubstitute given values
x+100+30=180
x=180-130
<h2>x=50 degrees</h2>
Answer: B
Step-by-step explanation: well by graphing the inequality we know it’s a solid line. There’s shading on the right but if you look closely at (0,0), the shading doesn’t go past or near the origin making it B “Does not include the origin”.