20 * 15 * 10 *10^-6
= 0.003
Answer to question 1 is D
answer to question 2 is A
Answer:

Step-by-step explanation:
step 1
Find the area of the circle
The area of the circle is

we have
----> the radius is half the diameter
substitute


step 2
Find the area of a sector
Remember that
The area of the circle subtends a central angle of 360 degrees
so
using proportion
Find out the area of a sector with a central angle of 108 degrees

assume

substitute

Answer: Point B
Point B is above (-2, -1)