For each problem, use the inscribed angle theorem.
19.

20.

21.

LN is a diameter, so arc LN has measure 180º, and so

The answer is 6*4*4 square inches where 4*4 gives us the area of one square and multiplying by 6 gives you the total surface area.
I think B i am not 100 sure
Answer:
26.6
Step-by-step explanation:
Tan(26.6) = 0.5
8/16 = 0.5