1.

find the area off the sector of circle with radius 4 cm and the angle 30° the find the area of corresponding major sector​

Answer»

Given;

⇒Radius of CIRCLE 4CM

⇒angle(Ф) = 30°

Formula;

⇒Area of SECTOR circle = (Ф/360°)×πr²

Put the VALUE on formula

⇒(30/360)×3.14×4×4

⇒(1/12)×50.24

⇒50.24/12

⇒4.18cm²

Now we have to find Area Major sector , so we USE this formula

⇒Area of major sector = Area of circle - area of minor sector

⇒Area of major sector =πr² -   (Ф/360°)×πr²

We have already find the area of minor sector , so put the value

⇒Area of major sector = 3.414 × 4 × 4 -   4.18

⇒Area of major sector = 54.624 - 4.18 = 50.44cm²


Discussion

No Comment Found

Related InterviewSolutions