| Problem |
Solution |
3) The points of an isosceles triangle are A=(2,3),
B=(3,1), and C=(1,1). If you rotate the triangle 180
degrees about the origin and then reflect the triangle
across the x-axis, what are the new coordinates for
A,B, and C?
|
- Draw the points on the graph after 180 degrees rotation about the origin.
- Now reflect these points around the x-axis and plot them.
- Therefore the new coordinates are____________________
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4) If a square cake with side length 8 inches serves 4 people, how many people would be able to get an equivalent serving from a 12 inch diameter circular cake? Both cakes are the same height.
|
- The area served by 1 person is _____ sq. inches
- The area of a 12 inch diameter circular cake = ___________
- The number of people this cake would serve is:____________
|
5) A circular cone can be created by joining the two straight edges of the shown section of a circle with central angle 90 degrees and radius 5 centimeters. What is the diameter of the created cone? (The diameter of a cone is the diameter of the circular opening where it is the widest.)
|
- The length of the quarter-circle arc =
___________ cm.
- This length is the circumference of the base of the cone, so the diameter of the cone is:
D = __________ cm.
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1) 
2) In the figure, line P is parallel to line R. Angles of measures 40 degrees and 75 degrees are marked. What is the measure of angle x?