Area of circle = πr²
Area of circle = π(4÷2)² = 12.57 cm²
Answer:
2
Step-by-step explanation:
0.4%×500=2
Hope it helps!!!
Answer:

Step-by-step explanation:
We are given that
is in <em>fourth</em> quadrant.
is always positive in 4th quadrant and
is always negative in 4th quadrant.
Also, we know the following identity about
and
:

Using \theta_1 in place of \theta:

We are given that 

is in <em>4th quadrant </em>so
is negative.
So, value of 
The answer is 4 and four-fifths.