Find the central angle of the sector whose area is 462 cm² radius=21

1.	Find the central angle of the sector whose area is 462 cm² radius=21 cm
Answer» Step-by-step explanation: answr search What would you LIKE to ask? 10th Maths Areas RELATED to Circles Area of Segment Find the area of the segmen... MATHS Find the area of the segment AYB shown in figure, if radius of the circle is 21 cm and 0 . ( Use π= 7 22 ) 1230433 MEDIUM Share Study later ANSWER Given angle of arc = 120 degrees radius of circle = 21 cm Area of circle = πr^2 =3.142121 =1386 cm2 Area of Arc= (angle of arc/ 360)area of circle = (120 /360)1386 =1386/3 =462 cm2 Area of triangle = aBsinx / 2 =2121*sin(120) /2 =190.96 cm2 Area of segment = area of arc - area of triangle =462 - 190.96 =271.04 cm2

Find the central angle of the sector whose area is 462 cm² radius=21 cm

Answer»

Step-by-step explanation:

answr

What would you LIKE to ask?

10th

Maths

Areas RELATED to Circles

Area of Segment

Find the area of the segmen...

MATHS

Find the area of the segment AYB shown in figure, if radius of the circle is 21 cm and

. ( Use π=

)

1230433

MEDIUM

Study later

ANSWER

Given angle of arc = 120 degrees

radius of circle = 21 cm

Area of circle = π*r^2

=3.14*21*21

=1386 cm2

Area of Arc= (angle of arc/ 360)*area of circle

= (120 /360)*1386

=1386/3

=462 cm2

Area of triangle = a*B*sinx / 2

=21*21*sin(120) /2

=190.96 cm2

Area of segment = area of arc - area of triangle

=462 - 190.96

=271.04 cm2