Question

What is the area of a sector of a circle of radius 5 cm formed by an arc of length 3.5 cm?

Answer 1

Answer:

The area of the sector of a circle is  8.75 cm² .

Step-by-step explanation:

Given :  

Radius of a circle = 5 cm

Length of the Arc , l = 3.5 cm

Area of the sector of a circle = ½ lr

Area of the sector of a circle = ½ × 3.5 × 5

Area of the sector of a circle = ½ × 17.5

Area of the sector of a circle = 17.5/2  

Area of the sector of a circle = 8.75 cm²

Hence, the area of the sector of a circle is  8.75 cm² .

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Answer 2

Answer:

Step-by-step explanation:

Area of the sector of a circle = ½ lr

Area of the sector of a circle = ½ × 3.5 × 5

Area of the sector of a circle = ½ × 17.5

Area of the sector of a circle = 17.5/2  

Area of the sector of a circle = 8.75 cm²