Tangents and Angles in Circles
Assume the lines that appear tangent are tangent, find the value of x.
x =
degrees
Assume the lines that appear tangent are tangent, find the value of x.
x =              degrees
Assume the lines that appear tangent are tangent, find the value of x.
x =           degrees
Determine whether a tangent line is shown.
Yes
No
Not enough information
Use largest triangleX = 180 - 90 - 43 = 47
Isosceles triangle - base angles =           º
90
Tangent to Circles
Answer (round to nearest degree): x =
Tips for solving for angles:•Triangles have 180•Quadrilaterals have 360•Radii are congruent•Triangles made with radii are isosceles•Tangents are perpendicular to radii
Calculate the value for ?.
º
90

Find the angle measure indicated. Assume that lines which appear to be

tangent are tangent.

138
90
Tangent to Circles
Answer (round to nearest degree): x =
Tips for solving for angles:•Triangles have 180•Quadrilaterals have 360•Tangents are perpendicular to radii.•Triangles made with radii are isosceles.
Calculate the value for ?.

Find the angle measure indicated. Assume that lines which appear to be

tangent are tangent.

º
º
º
Tangent to Circles
Tips for solving for angles:•Triangles have 180•Quadrilaterals have 360•Tangents are perpendicular to radii.•Triangles made with radii are isosceles.

Find the angle measure indicated. Assume that lines which appear to be

tangent are tangent.

º
Tangent to Circles
Tips for solving for angles:•Triangles have 180•Quadrilaterals have 360•Tangents are perpendicular to radii.•Triangles made with radii are isosceles.

Find the angle measure indicated. Assume that lines which appear to be

tangent are tangent.

90º
?
Tangent to Circles
114º
?
33º
?

Find the angle measure indicated. Assume that lines which appear to be

tangent are tangent.

34º
?
Tangent to Circles
90º
?
º

Find the angle measure indicated. Assume that lines which appear to be

tangent are tangent.

º
Tangent to Circles
º
º

Find the angle measure indicated. Assume that lines which appear to be

tangent are tangent.

º
Tangent to Circles
º
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