Semi-circle Area

what is the formula for finding the area of a semi-circle

• A = π r²

• C = π r²

• A = 1/2 π r²

• A = 2 π r

• A = 2π r²

Tags

CCSS.7.G.B.4

What is the area of this semi circle? 

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

Tags

CCSS.7.G.B.4

Jesse used rope to stake a circular region in which to plant a garden. The diameter of the region is 20 inches. What is the approximate area of half of the garden?

• 31.4 in²
• 314 in²
• 157 in²
• 628 in²

Tags

CCSS.7.G.B.4

Find the area of this semicircle with a diameter of 34 km.

• 453.73 km
• 226.87 km
• 106.76 km
• 907.46 km

Tags

CCSS.7.G.B.4

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

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

Tags

CCSS.7.G.B.4