Answer:
63
Step-by-step explanation:
iuhgyftyukhiln jnjm
Answer:
<h2>neither</h2>
Step-by-step explanation:
If AB an CD are parallel, then their slopes are the same.
If AB and CD are perpendicular, then the product of their slopes is equal -1.
The formula of a slope:

Calculate the both slope:


The line AB and line CD are not parallel

The line AB and line CD are not perpendicular.
410 ?
Explanation : 4 comes from what you subtract and 10 comes from what the question would be if it was added
The correct answer is letter F
∠ACB is an inscribed angle, so
m∠ACB= (1/2)mAB =(1/2)*50=25⁰
m∠ACB= 25⁰