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Home > GC > Chapter 4 > Lesson 4.1.2 > Problem 4-20

4-20.

Examine the figure at right, which is not drawn to scale. Which is longer, or ? Explain your answer.  

Two internal triangles A, D, B, and D, B, C, are created by a line segment of 10 feet drawn from the upper vertex perpendicular to the base. Angle A is 11 degrees. Angle B is 90 degrees. Angle C is 68 degrees.

By the slope ratio for

By the slope ratio for

Given the above information, solve for and to determine which is longer.