GEOMETRY. Answer everything QUICKLY IN 20 MINUTES. 13 questions

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10.
6 in.
Maintenance Mr. Gonzales is replacing a cylindrical air-
conditioning duct. He estimates the radius of the duct by
folding a ruler to form two 6-in. tangents to the duct. The
tangents form an angle. Mr. Gonzales measures the angle
bisector from the vertex to the duct. It is about 2 in. long,
What is the radius of the duct?
Round to nearest teuth.
r=
in
11.
Algebra Assume that lines that appear to be tangent are tangent. Pis the center of
each circle. Find the value of x.
Round to the nearest tenth.
12.
Assume that lines that appear to be tangent are tangent. O is the center of each
circle. Find the value of x to the nearest tenth.
3.5
6.8
.
해
X=
2
13.
In the figure at the right, what is the value
of x to the nearest tenth?
8 0
3. Point O is the center of each circle. Assume the lines that appear tangent are
tangent. What is the value of the variable? Round to nearest tenth, if necessary.
10
1.
Point O is the center of each circle. Assume the lines that appear tangent are
tangent. What is the value of the variable? Round to nearest tenth, if necessary.
34
X =
Point O is the center of each circle. Assume the lines that appear tangent are
tangent. What is the value of the variable? Round to nearest tenth, if necessary.
0
54
X =
5.
Find x.
4
X
X =
6.
Find x
-5.4
7.2
X =
2
Find x. Round to nearest tenth, if necessary.
24
6
X =
8. Find the value of x to the nearest tenth.
20
To be clear x is NOT part of the chord!! It is the segment perpendicular to the chord!
X =
9.
Algebra Assume that lines that appear to be tangent are tangent. O is the center
of each circle. Find the value of x. Round to nearest tenth, if necessary
12
.
8
X
X