Angles of Elevation and Depression
... crevasse that is 115 ft wide. The angle of depression from the edge where she stands to the bottom of the opposite side is 52º. How deep is the crevasse at this point? Round to the nearest foot. ...
... crevasse that is 115 ft wide. The angle of depression from the edge where she stands to the bottom of the opposite side is 52º. How deep is the crevasse at this point? Round to the nearest foot. ...
expanding current practice in using dynamic geometry to teach
... As observed, current practice involved taking a simple polygon figure with the measures of all angles marked (see Figure 5), dragging points to generate several examples, and summing the angles for each example. The development followed an inductive sequence, starting with the familiar cases of the ...
... As observed, current practice involved taking a simple polygon figure with the measures of all angles marked (see Figure 5), dragging points to generate several examples, and summing the angles for each example. The development followed an inductive sequence, starting with the familiar cases of the ...
Parallel and perpendicular lines
... 1. (a) Vertically opposite angles are equal in size. (b) Adjacent angles are next to each other. 2. Corresponding (F) angles are equal in size. 3. Co-interior (C) angles add to 180è. 4. Alternate (Z) angles are equal in size. 5. When looking for the F, C or Z shape, remember that they may be backwar ...
... 1. (a) Vertically opposite angles are equal in size. (b) Adjacent angles are next to each other. 2. Corresponding (F) angles are equal in size. 3. Co-interior (C) angles add to 180è. 4. Alternate (Z) angles are equal in size. 5. When looking for the F, C or Z shape, remember that they may be backwar ...
Notes on Find That Side or Angle Learning Task
... a. How tall is the tree? b. What is tan(45°)? c. What’s the connection between part a and part b? The first two problems in this task involve trigonometric ratios in special right triangles, where the values of all the ratios are known exactly. However, there are many applications involving other si ...
... a. How tall is the tree? b. What is tan(45°)? c. What’s the connection between part a and part b? The first two problems in this task involve trigonometric ratios in special right triangles, where the values of all the ratios are known exactly. However, there are many applications involving other si ...
