Unit 10 Quiz 1

Name

Period

• 1
• 2
• 3
• 4
• 6

Guangzhou Circle is a circular building in Guangzhou, China designed by Italian architect Joseph di Pasquale. The building’s height is meters (m) and it has a diameter of m. Guangzhou Circle has a circular hole at its center that is open with views of the Zhujiang River. The diameter of the circular hole is m. A diagram of the building is shown where the smaller circle represents the circular hole, is the radius of the circular hole, is height of the building, and is diameter of the building.

Determine the area, in square meters, of the sector LM  if m<LGM=72. Round your answer to the nearest thousandth.

• 2,991.425 m^2
• 1,447.646 m^2
• 814.301 m^2
• 361.911 m^2

The part of the building that rests on the ground is not circular. In the diagram circle G represents the Guangzhou circle and WK represents the ground. Determine the length of arc WK if m

132.104 m

87 m

147.288 m

73.644 m

Two circles are shown where RB=27centimeters (cm), HT=25.5cm, m

Option 2