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44 votes
44 votes
Find the value of b………………

Find the value of b………………-example-1
User Sven Williamson
by
2.8k points

1 Answer

11 votes
11 votes

Answer:

C

Explanation:

Show that the two angles are congruent at 65 each

Tangents touch the circle and make a right angle with the radii.

The radii are equal Property of radii.

The center line is common to both triangles. Reflexive line

The tangent lines are congruent Found from Pythagoras

The triangles are congruent SSS

The two angles are congruent Parts of Congruent Δs

Add the 2 congruent angles of 65 each.

The angles are 65 + 65 = 130

The entire circle has 360 degrees.

Subtract 130 from 360

b = 360 - 130

b = 230

User Jacob Rastad
by
2.9k points
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