4.2 Review Worksheet (continued)
Position each figure in the coordinate plane and give the coordinates of each vertex. 22. a square with side length 2 m
23. a rectangle with dimensions x and 3 x
Assign coordinates to each vertex and write a coordinate proof. 24. Given: E is the midpoint of AB in rectangle ABCD. F is the midpoint of CD . Prove: EF = AD
4.2.5 Isosceles and Equilateral Triangles 25. A plane is flying parallel to the ground along
B
C
AC . When the plane is at A , an air-traffic controller in tower T measures the angle to the plane as 40°. After the plane has traveled 2.4 mi to B, the angle to the plane is 80°. How can you find BT ?
2.4 mi
A
80°
40°
T
Find each angle measure. 26. m ∠ E A
27. m ∠ TRU
R
96°
D
57°
B
U
S
C
T
E
251
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