Plane Geometry and Similarity

What is the area of this circle?

• 163.24 cm²

• 15.32 cm²

• 124.24 cm²

• 113.04 cm²

What is the area of the parallelogram above?

• 13 cm²

• 28.5 cm²

• 45.6 cm²

• 40 cm²

What is the area of the composite figure?

• 144 m²

• 111 m²

• 45 m²

• 70 m²

The pair of figures is similar. Find the missing side.

• x = 9

• x = 28

• x = 7

• x = 63

The two rectangles are scale drawings. What is the measurement of x?

• 21

• 1.25

• 20

• 4

What is the scale factor from the smaller quadrilateral to the larger?

• scale factor = 4

• scale factor = 10

• scale factor = 3

• scale factor = 2

What is the scale factor from the large triangle to the small triangle?

• 1/2

• 2/3

• 3/4

• 2

Does this picture show the diameter or radius of a circle?

• Diameter

• Radius

Find the area of the circle

• 43.96

• 153.86

• 87.82

• 307.72

What is the area of the shaded region?

• 20 sq cm

• 4 sq cm

• 30 sq cm

• 24 sq cm