Semi Circles Area

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

• 100.48 cm²

• 80 cm²

• 200.96 cm²

• 25.12 cm²

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

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

What is the area of this semi circle? 

• 100.5 square cm

• 25.1  square cm

• 50.3 square cm

• 12.6 square cm

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

What is the area of the semi-circle?

• 56.52

• 113.04

• 28.26

• 14.13

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

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

Find the area of the composite figure.

• 100

• 400

• 137.5

• 175

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