Bellringer Lesson 8.1

What is the correct expression to determine the angle of elevation if a traffic light is suspended from a mast arm that is 60 feet long, and the horizontal distance the mast arm extends is 59.8 feet?

• cos^-1(60/59.8)

• sin^-1(60/59.8)

• cos^-1(59.8/60)

• sin^-1(59.8/60)

Tags

CCSS.HSG.SRT.C.8

Quadrilateral DFHG is inscribed in a circle. What is the measure of Angle H?

• 100°

• 60°

• 115°

• 180°

Tags

CCSS.HSG.C.A.2

In Circle Q with diameter PR, if the measure of arc RS is 54°, what is the measure of angle RPS?

• 54°

• 108°

• 27°

• 216°

Tags

CCSS.HSG.C.A.2

Which transformation carries the rectangle ABCD onto itself with the center E as shown in the diagram?

• Reflection across the line y=1.

• Reflection across the line y=2x+3.

• Rotation 90° clockwise around the point E.

• Rotation 180° clockwise around the point E.

Tags

CCSS.HSG.CO.A.3

Triangle ABC is reflected across the x-axis to form triangle A'B'C'. If m∠C=90° and AC=BC, what is the nature of triangle ABC?

Nike buys a new roll of tape with a diameter of 6 inches. After using some of the tape, the diameter of the roll decreases to 3.6 inches. Which expression represents the new circumference of the roll in inches?

• 4.8π

• 7.2π

• 6π-2.4π

• 12π-2.4π

Tags

CCSS.7.G.B.4

Tom wants to create a square inscribed in a circle. He constructs a diameter inside a circle. What is the next step?

• Construct a new diameter.

• Construct an angle bisector.

• Construct a perpendicular bisector.

• Construct a chord parallel to the diameter.

The points (4,3), (0,0), and (4,0) are connected to create a two-dimensional polygon. What three-dimensional shape should be created by rotating the two-dimensional polygon across the x-axis?

• Cone

• Cylinder

• Pyramid

• Triangular Prism

Tags

CCSS.7.G.A.3

The height of the pyramid is 12 units and the side length of the base is 10 units. What is the relationship between the cross section and the base?

• The cross section is 2 times greater than the base.

• The cross section is 1.77 times less than the base.

• The cross section is the same as the base.

• The base is 10 times greater than the cross section.

Tags

CCSS.7.G.A.3

In the parallelogram KLMN, if m∠N=(5x+10)° and m∠L=(8x-35)°, what is the measure of m∠K?

• 70°

• 85°

• 95°

• 110°

Tags

CCSS.HSG.CO.C.11