I am in a hurry. I didn't go to school that day I don't know how to become a math expert. Help me! ! - Training Enrollment Network

I am in a hurry. I didn't go to school that day I don't know how to become a math expert. Help me! !

(1), the area of the circle where the sector is located is this sector: 360 degrees/120 degrees =3 (times).

So the area of the circle where this sector is located is: 9.42×3=28.26 (square meter).

(2) The area or arc length of this sector is the area or circumference of its circle: 60/360= 1/6.

Area of circle: 4.7 1×6=28.26 (square centimeter)

Square of radius: 28.26÷3. 14=9.

Radius: 3 cm

The circumference of a circle: 2×3. 14×3= 18.84 (cm).

The arc length of the sector is:18.84×1/6 = 3.14 (cm).

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