Download Geometry Review #1 - Scott County Schools

Geometry Spiral Review 15
Name ________________________
Teacher ______________________
1)
Due Date __4-25-14________
AC : AB is 8:5, Find the value for X to the nearest tenth.
3x+2
B
A
24
C
2)
Polygon ABCD is similar to Polygon FREH .
A)
Find the scale factor for Polygon FREH to Polygon ABCD
A
B)
Find the length of RE to the nearest tenth.
C)
If the perimeter of Polygon ABCD is 69, what is the perimeter of
Polygon FREH rounded to the nearest tenth? (Figures are not
drawn to scale)
15
B
25
18
E
D
C
H
R
6
F
3)
Proof Write a two-column or paragraph proof.
GIVEN:  CAB is a right angle.
AD is an altitude.
PROVE: ABC~ DAC
STATEMENT
REASON
1
2
3
4
4)
1
ADB and ADC are right
angles
C is congruent to C
ABC~ DAC
Given
Given
2
3
4
Sketch the triangles using the given description. Explain whether the
triangles can be similar.
In ABC, mB = 46°, AB = 6, and BC = 12. In XYZ, mY = 46°, XY = 2,
and YZ = 3.
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5)
Draw the dilation of the polygon with the given vertices using the given
scale factor k. State the new coordinates.
A(2, 0), B(4, 4), C(2, 6), D(0, 4); k =
3
2