1.

Find the perimeter of a sector of angle 45° of a circle with radius 7 cmplease answer fast ​

Answer»

Answer:

19.5 cm

Step-by-step explanation:

Given:

θ=45∘

radius=7cm

We KNOW that:

ANGLE=arc lengthradius

⟹arc LENGTH=angle×radius

⟹arc length=π4×7

⟹arc length=5.5cm

Hence, PERIMETER of a sector of angle 45∘ will be,

2r+arc length

=14+5.5

=19.5cm



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