<span>given tan theta 4/3 and sin (-4/5), find cos theta
cos theta-3/5</span>
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.1104972376 just use a calculator
The area of the triangle is (1/2)(DE)^2*tan(60°) = (1/2)*2*√3 = √3.
Selection C is appropriate.
9514 1404 393
Answer:
40 ft
Step-by-step explanation:
The post is 8/12 = 2/3 as tall as the shadow is long. We expect the same relationship holds for the tree.
tree height = (2/3)(shadow length) = (2/3)(60 ft) = 40 ft
The tree is 40 feet tall.
