Question

Show that in a circle with radius(r), the length of the arc(l) and the area of the sector(A) with the same inclination at the center is given by A=(l×r)/2​

Answer 1

Answer:

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Answer 2

Answer:

The length of the arc 'l', radius of the sector 'r' then the area of the sector is (l×r)/2 sq.units.

Step-by-step explanation:

Points to remember:

• The distance between the centre of the circle and the any point lying the circumference of the circle is the radius of the circle and it is denoted by'r'.
• The area enclosed by the two radii and the arc is called the sector of the circle.
• The part of the circle is called its arc.
• Total length of the circle is called its circumference and it is denoted by'C'.
• Circumference of the circle(C)=2πr units
• Area of the circle (A)=πr^2 sq.units