1.

The Sector Of A Circle Has Radius Of 21 Cm And Central Angle 135o. Find Its Perimeter?

Answer»

PERIMETER of the sector = LENGTH of the arc + 2(RADIUS

= (135/360 * 2 * 22/7 * 21) + 2(21) 

= 49.5 + 42 = 91.5 cm.

Perimeter of the sector = length of the arc + 2(radius) 

= (135/360 * 2 * 22/7 * 21) + 2(21) 

= 49.5 + 42 = 91.5 cm.



Discussion

No Comment Found