Semi Circles Area

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

• 100.48 cm²

• 80 cm²

• 200.96 cm²

• 25.12 cm²

Tags

CCSS.7.G.B.4

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

• A = π r²

• C = π r²

• A = π r² / 2

• A = 2 π r

Tags

CCSS.7.G.B.4

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet? Leave in terms of π.

• 2π

• 8π

• 10π

• 4π

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

Find the area of this semi-circle.  Round to the nearest tenth.  The diameter is 22.6

• 200.6 in²

• 401.1 in²

• 802.3 in²

• 1064.6 in²

Tags

CCSS.7.G.B.4

What is the area of the semi-circle?

• 56.52

• 113.04

• 28.26

• 14.13

Tags

CCSS.7.G.B.4

Calculate the area of the semi-circle. Use 3.14 for pi.

Tags

CCSS.7.G.B.4

Mrs. Wilson placed the welcome mat shown below on her front door step. What is the area of her welcome mat in square feet?

• A = 25.12 sq. inches

• A = 50.24 sq. inches

• A = 31.4 sq. inches

• A = 12.56 sq. inches

Tags

CCSS.7.G.B.4

Find the area of the composite figure.

• 100

• 400

• 137.5

• 175

Tags

CCSS.3.MD.C.7D

What is the area of this composite shape? (Use 3.14 = π and round to the nearest tenths place)

• 21

• 19.2

• 40.2

• 42