pinapunapula
05.03.2021 •
Mathematics
In ΔTUV, t = 320 inches, u = 360 inches and ∠V=81°. Find the area of ΔTUV, to the nearest square inch.
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Ответ:
Step-by-step explanation:
Given
Required
Calculate the area
Given two sides and a middle angle, the area of a triangle is:
In this case, it is:
Ответ:
1.30 miles
Step-by-step explanation:
The tangent relation is ...
tan(angle) = opposite/adjacent
The height of the surveyed point is the side of the right triangle that is opposite the angle of elevation. The horizontal distance to the surveyed point is the side of the triangle adjacent to the angle of elevation. So, we have ...
tan(18°) = height/(4 mi)
height = (4 mi)tan(18°) = 1.300 mi
The vertical change in elevation from the surveyor to the surveyed point is 1.300 miles.