Answer:
Always
Step-by-step explanation:
The definition of a perpendicular line is that it intersects another at a 90 degree angle. Using this, by verticals, the opposite corner angle must also be 90-degrees, and since one side of a line is 180 degrees, 180-90 = 90, which ensure the rest of the angles will be 90 degrees too.
4.5 hrs because 162.50-50 = 112.50
112.50/25= 4.5
Answer:
2 1/6
Step-by-step explanation:
9 1/2 - 7 1/3
to improper
19/2 - 22/3
= 2 1/6
Answer:
90
Step-by-step explanation:
Answer:
m∠1 = 110° and m∠2 = 70°
Step-by-step explanation:
m∠1 = 110° since vertical angles
To find m∠2, m∠1 and m∠2 must add to 180°
m∠1 + m∠2 = 180°
110° + m∠2 = 180°
m∠2 = 70°
