Triangle Trig Help?

Posted on 2014-12-04 07:54:00 in Math by MAK

1) Suppose A = 30 degrees and b = 10. Then there is one value of a that is less than b and for which there is a unique triangle with the data A, a, and b. That value of a is ___

2) A triangular parcel of land has sides of lengths 450 feet, 540 feet and 477 feet.

a) What is the area of the parcel of land?
Area = ___

b) If land is valued at 2500 per acre (1 acre is 43,560 feet^2 ), what is the value of the parcel of land?
value = ___

3) surveyor determines that the angle of elevation to the top of a building from a point on the ground is 31.6 degrees. He then moves back 43.6 feet and determines that the angle of elevation is 26 degrees.

What is the height of the building?

Round your answer to four decimal places.

Height of building = ___ feet

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