MATH5 Q4 Summative Test #1

Direction: Read and understand each item. Click the box of the correct answer.

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1.) In a given circle, the r=9 cm, what is its diameter?

• 18 m

• 18 cm

• 4.5 m

• 4.5 cm

2.) Which of the following is the formula in solving the area of a circle?

• A = 2πr

• A = πr²

• A = πd

• A = 2πr²

3.) The diameter of a circle is 8 cm, what is its area?

• 50.24 cm²

• 200.96 cm²

• 25.12 cm²

• 100.48 cm²

4.) What is the area of a circle if the diameter is 6 m?

• 113.04 m²

• 56.54 m²

• 28.26 m²

• 36 m²

5.) What is the area of a circle if the radius is 5 m?

• 15.7 m²

• 31.4 m²

• 78.5 m²

• 157 m²

For numbers 6 - 10, please refer to the problem below.

"The bottom of a circular swimming pool with a diameter of 40 feet is made up of blue tiles. How many square feet is that?"

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"The bottom of a circular swimming pool with a diameter of 40 feet is made up of blue tiles. How many square feet is that?"

6.) What is asked for in the problem?

• The shape of the swimming pool.

• The diameter of the swimming pool.

• The color of the tiles.

• The area covered by the tiles of the swimming pool.

"The bottom of a circular swimming pool with a diameter of 40 feet is made up of blue tiles. How many square feet is that?"

7.) What is given in the problem?

• radius = 80 feet

• The diameter is 40 feet.

• The radius is 40 feet.

• The diameter is 40 meters.

"The bottom of a circular swimming pool with a diameter of 40 feet is made up of blue tiles. How many square feet is that?"

8.) What is the formula to be used in solving the area?

• A = 2πr

• A = πr²

• A = πd

• A = 2πr²