CIRCLE

Name :Michaella Sonya Kim Luy Material : Circle

Class / No: 6B / 24 KD: 3.5

I. Calculate the circumference of the circle in the picture below!

No Completion Image

1

Around :

2

Around :

3

Around :

4

AB arc length:

5

AB arc length:

II. Calculate the area of the circle in the image below!

No Completion Image

1

Wide :

2

Wide :

3

Area of AOB:

4

Combined Area :

5

Shading area:

III. do it!

1. A circular garden has a diameter of 28 m. Made walked around the garden for two laps. How many meters did Made go?

Answer :

So :

2. A garden is in the shape of a rectangle with a length of 10 m and a width of 7 m. In the garden there is a circular area planted with flowers. If the length of the diameter of the land planted with flowers is the same as the width of the garden, find the area of the garden not planted with flowers!

Answer :

So :

3. Lani makes a quarter circle decoration out of cardboard measuring 60 cm x 40 cm. If the radius of the decoration is 21 cm, determine the area of the remaining unused cardboard!

Answer :

So :

4. Toni goes to school by bicycle. Toni's bicycle wheel spokes are 35 cm long. During the journey from Toni's house to school, the wheel of his bicycle spins 825 times. Find the distance from Toni's house to school!

Answer :

So :

5. A wall hanging is in the shape of a circle with a central angle of 150o and a radius of 36 cm. Determine the surface area of the wall decoration!

Answer :

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