Analyze the diagram below and complete the instructions that follow. а
60°
b.
45°
8
Find a, b, and c.

C

Step-by-step explanation:

The base angles are congruent, both 60°, thus the triangle is isosceles and x is a perpendicular bisector ( divides the base into 6 and 6 )

Using the tangent ratio in the right triangle on the left and exact value

tan60° = , then

tan60° = = ( multiply both sides by 6 )

6 × tan60° = x , that is

x = 6

Using the cosine ratio in the same right triangle and exact value

cos60 = , then

cos60° = = ( multiply both sides by y )

y × cos60° = 6 , that is

y × = 6 ( multiply both sides by 2 )

y = 12

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i think it is 18

step-by-step explanation: