Answer:
Step-by-step explanation:
If we drew an auxiliary line parallel to line 
and line 
that intersects the vertex of 
, we would form three angles, one of them being
The largest of these angles corresponds with the angle marked as 
.
The angle on the bottom right corresponds with the angle next to the one marked as 
. Therefore, its measure is 
.
Since there are 
in a circle, we can now write the following equation:
.
<em>If the radius of a sphere is doubled, the surface area becomes four times the original surface area.</em>
Answer:
We call the denominator rational.
Step-by-step explanation:
For example:
It's clear that the denominator is now a rational number, not an irrational one anymore.
Answer:
For the first question, the answer is rotation 290 counterclockwise.
And for the second question, the answer is accurate.
