Question

In circle M with mZ LMN = 42 and LM = 18 units find area of sector LMN. Round to the nearest hundredth. N L M

Answer 1

The formula for calculating area of sector is:

`\text{Area of Sector=}(\theta\pi r^2)/(360)`
`\text{where }\theta=42^o\text{ , r=18 units and }\pi=(22)/(7)`
`\text{Area of Sector= }(42*(22)/(7)*18^2)/(360)=(6*22*324)/(360)=118.8\approx118.80\text{ square units}`