Question

0.3 rad 20 a =

Explanation:

Step1: Recall the formula for the area of a sector

The formula for the area of a sector of a circle is $A=\frac{1}{2}r^{2}\theta$, where $r$ is the radius of the circle and $\theta$ is the central - angle in radians.

Step2: Identify the values of $r$ and $\theta$

Given that $r = 20$ and $\theta=0.3$ rad.

Step3: Substitute the values into the formula

$A=\frac{1}{2}\times20^{2}\times0.3$.
First, calculate $20^{2}=400$. Then, $\frac{1}{2}\times400 = 200$. Finally, $200\times0.3 = 60$.

Answer:

60