IM2.6 Review 2: Trigonometry
a. Find the sine, cosine, and tangent values for angles r and s (leave as fractions).[br]b. Why is the sine of an acute angle the same as the cosine of its complement?
Find the measure of each angle above. Round to the nearest tenth of a degree.
a. How long is the guy wire? Round to the nearest tenth.[br]b. How far above the ground is it fastened to the tower? (point B)[br]c. How tall is the tower (DC) if angle DAC=71?