Which of the following are mathematical sentences?
1 answer:
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Given:
In triangle OPQ, o = 700 cm, p = 840 cm and q=620 cm.
To find:
The measure of angle P.
Solution:
According to the Law of Cosines:
Using Law of Cosines in triangle OPQ, we get
On further simplification, we get
Therefore, the measure of angle P is 79 degrees.
That's 7.68% = 7.7% (rounded)
Note: C(5, 4) is the number of combinations of 5 things taken 4 at a time. You may have seen this written as
In general,
Since there are 
in a circle, and central 
, you can see that the part "sliced out" by the central angle is 
of the whole circle.
This means that the length of the intercepted arc
is 
of the circumference of the circle. So,
This means that the length of the intercepted arc