Question

find the area of sector of circle of radius 3.5cm and angle of the sector is 90​

Answer 1

Answer:

Step-by-step explanation:

two circles ha

first circle = Tita/360*πr²

=60/360*22/7*3.5*3.5=6.416666

2nd circle=90/360*22/7*3.5*3.5=9.625

Answer 2

Concept

The sector is essentially a section of a circle, and it can be described using the following three criteria:

The area of a disc that is surrounded by two radii and an arc is known as a circular sector.

The circle is divided into the major sector and the minor sector by sector.

The region with a smaller area is referred to as the "Minor Sector," whereas the region with a larger area is referred to as the "Major Sector." The area of a sector when the angle is A = (θ/360°)  × πr^2.

Given

Radius of the sector of the circle = 3.5 cm

Angle of the sector = 90°

Find

We have to find the value of the area of the sector.

Solution

Area = (90°/360°)  × π(3.5)^2 = 4  × π  × 12.25 = 153.94

Therefore, the value of the area of the sector is 153.94 cm².

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