Answer:
C. and E.
Step-by-step explanation:
Can't tell you how I know but I believe this is correct.
Answer:
a)3.50
b)okay?
i)37.80
ii)3.15
Step-by-step explanation:
Answer:
35 ft
Step-by-step explanation:
The arch is in the shape of a semicircle.
The distance around the arch is about 110 feet. This is the same as the circumference of the arch.
The height of the arch is the radius of the arch.
The circumference of a semicircle is given as:
where r = radius
Therefore:
110 = πr
=> r = 110/π
r = 35.01 ft ≅ 35 ft
The height of the arch is 35 ft
Answer:
ok
Step-by-step explanation:
Answer:
2. Parallel (Interior Alternate Angles)
3. Not enough information
Step-by-step explanation:
For the first question, combine 60+25 which equal to 85°
Since both are 85° for interior alternate angles, the theorem states that if both interior alternate angles have same value, both lines are parallel.
Hence, both lines are parallel.
For the second question, there's not enough information. Some people may think that, "Can't we use 82-x=120"? The answer is no. 82-x=120 only applies when both lines are parallel. When we have to prove parallel lines, we cannot assume that they are parallel.
So 82-x = 120 is not valid.
Any other theorems do not work because not enough information.
Therefore, there's no enough information.