Felipe set his hinged mirror so that its angle was 36° and the core region was isosceles, as shown at right. Homework Help ✎
Question 1
1.
How many sides did his resulting polygon have? Show how you know.
Question 2
2.
What is another name for this polygon?
Question 3
3.
You learned that the diagonals of a rhombus are perpendicular bisectors. If ABCD is a rhombus with side length 15 mm and if BD=24 mm, then find the length of the other diagonal, AC. Draw a diagram and show all work. Homework Help ✎
Question 4
4.
Joanne claims that (2,4) is the midpoint of the segment connecting the points (−3,5) and (7,3). Is she correct? Explain how you know. 7-45 HW eTool (Desmos) Homework Help ✎
For each pair of triangles below, determine whether or not the triangles are similar. If they are similar, show your reasoning in a T table. If they are not similar, explain how you know. Homework Help ✎
1
Question 5
5.
1
Question 6
6.
1
Question 8
8.
If ΔABC≅ΔDEC, which of the statements below must be true? Justify your conclusion. Note: More than one statement may be true. Homework Help ✎
Question 9
9.
On graph paper, graph the points A(2,9), B(4,3), and C(9,6). Which point (A or C) is closer to point B? Justify your conclusion. Homework Help ✎