7th Math 7.4 Area Semicircle and Quarter Circle

what is this shape called

• circle

• semi circle

• moon

• triangle

What is the area of this semi circle? 

• 100.5 square cm
• 25.1  square cm
• 50.3 square cm
• 12.6 square cm

what is the area of this semicircle ?
d = 8 cm 

• 100.48 cm²
• 80 cm²
• 200.96 cm²
• 25.12 cm²

Find the area of the quarter circle. Round you answer to the nearest hundredth.

• 58.88

• 78.50

• 7.85

• 157.00

Fins the area of this quarter circle with a radius of 6 cm.

• 56.52 cm
• 113.04 cm
• 28.26 cm
• 37.68 cm

Find the area of this quarter circle with a radius of 18 cm.

• 1017.36 cm
• 254.34 cm
• 26.52 cm
• 123.65 cm

Find the Circumference of the Semi-Circle.

• 22.98

• 21.98

• 10.99

• 43.96

Find the area of this Semicircle with a diameter of 18 cm

• 254.34 cm
• 127.17 cm
• 56.52 cm
• 28.26 cm

Find the Circumference of the Semi-Circle.

• 28.26

• 56.52

• 14.13

• 30.02

What is the perimeter of the semi-circle?

• 11 yd
• 17.27 yd
• 34.54 yd
• 28.27 yd