Geometry Ost

Rhombus PQRS is shown on the coordinate plane. Points M and N are midpoints of their respective sides. Select all of the transformations that map the rhombus onto itself.

• a 90 degree rotation around the center of the rhombus

• a 180 degree rotation around the center of the rhombus

• a reflection across PR

• a reflection across NM

• a reflection across QS

Solve for x

• 6.25

• 1.75

• 5

• 3

Find the area of the shaded sector of circle O.  The radius is 6 inches and the central angle is 100°.  Express answer to the nearest tenth of a square inch.

• 9.2 sq. in.

• 10.5 sq. in.

• 31.4 sq. in.

• 38.2 sq. in.

Solve for x

• 97.5

• 33

• 16.5

• 52.5

A parallelogram is a rectangle if its diagonals

• bisectors of each other

• are perpendicular

• are parallel

• are congruent

calculate the area of the triangle

• 125

• 43.3

• 86.6

• 134.2

which shortcut proves these triangles are congruent?

• SAS

• SSA

• ASA

• AA

Solve for the value of x

• -40

• 55

• 85

• 30

Quadrilateral ABCD is inscribed in circle O, as shown. What is the value of y?

• 83

• 97

• 76

• 104

A park has a triangular sandbox. Todd wants to create a smaller sandbox at his backyard having the same angles as the park sandbox.

What is the perimeter, in feet (ft), of Todd's Sandbox?

• 36 ft

• 18.4 ft

• 16 ft

• 20.8 ft