Q. 1 C5.0( 1 Vote )

# Find the arc leng

Given:

central angle 45°

Arc length = ?, area of sector = ? and perimeter of sector = ?

As we know,

(a) Length of arc =   Length of arc = 11cm

(b) Area of sector =   area of sector = 77cm2

(c) perimeter of sector = r + r + length of arc

= 2 ( r) + length of arc

= 2(14) + 11

= 28 + 11 = 39cm

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