the angle of a sector is 90degrees and its radius is 28cm then the are sector in square centimeters
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Solution :-
Given -Radius of the sector = 28 cm and angle of the sector = 90°
Area of sector = (θ/360)*πr²
⇒ (90/360)*22/7*28*28
⇒ 1/4*22/7*28*28
⇒ 22*28
= 616 cm²
Answer.
Given -Radius of the sector = 28 cm and angle of the sector = 90°
Area of sector = (θ/360)*πr²
⇒ (90/360)*22/7*28*28
⇒ 1/4*22/7*28*28
⇒ 22*28
= 616 cm²
Answer.
Answered by
1
We know angle in a circle is 360 Degree
If there is a sector with 90 degree angle the particular sector is 1/4th of the circle
Let the radius be r
Area of Full Circle = pi * r * r
Area of the Sector = 1/4 * pi * r * r
For, r = 28 Cm
Area of Sector = 1/4 * pi * 28 *28 = 1/4 * 3.14 * 28 *28
= 615.44 Cm Sqr
If there is a sector with 90 degree angle the particular sector is 1/4th of the circle
Let the radius be r
Area of Full Circle = pi * r * r
Area of the Sector = 1/4 * pi * r * r
For, r = 28 Cm
Area of Sector = 1/4 * pi * 28 *28 = 1/4 * 3.14 * 28 *28
= 615.44 Cm Sqr
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