Answer:
Area of circle is
Step-by-step explanation:
Since angle is given in radians, so using formula for area of sector in radians is given as,
Given area of sector and angle. Therefore substituting the values in above formula,
Cancelling out the common term,
Multiplying with 2 on both sides,
Therefore value of is
Formula for area of circle is,
Substituting the value,
Therefore area of circle is