Answer:
The first one is 1/2
The second one is 1
The third one is 0
Step-by-step explanation:
Answer:

Step-by-step explanation:
For this triangle we have to

We want to find the length of b
We know that the sum of the internal angles of a triangle is 180 °
So

Now we use the sine theorem to find the length of b:

Then:

<span>paper and pencil to record work</span>
Answer:
50%
Step-by-step explanation:
cause 50% is 1/2 and 1/2 of 20 is 10