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3 votes
Solve the right triangle.
W
√57
U
2√19
V

Solve the right triangle. W √57 U 2√19 V-example-1

2 Answers

5 votes

Explanation:

By Partago theory

The Sum of two right angle triangle must equal to it hypothes

Solve the right triangle. W √57 U 2√19 V-example-1
User Jaypeagi
by
6.8k points
6 votes

Answer:

UV = √19

∠V= 60°

∠W = 30°

Explanation:

By Pythagoras Theorem,
A^(2)+B^(2)=C^(2), where C is the hypotenuse, and A and B are the two smaller sides.

Therefore,
UV^(2) =(2√(19))^(2)- (√(57) )^(2)


UV^(2)=76-57=19\\UV=√(19)

To find the measures of ∠V and ∠W, using right angle trigonometry (SOH CAH TOA). You can actually use any trig ratio, sine (opposite/hypotenuse), cosine (adjacent/hypotenuse), or tangent (opposite/adjacent) to find your designated angle, but I'll just use an appropriate one.

Tan∠V = opposite/adjacent = WU/UV =
\frac{√(57) }{\sqrt[]{19} }

∴∠V=
tan^(-1) (\frac{√(57) }{\sqrt[]{19} })

∴∠V= 60°

Finally, you could use trigonometry again to find the other unknown angle, or you could use logic, using the property that the angle sum of a triangle = 180°, and the fact that you already have 2 angles.

∴∠W = 180° - 60° - 90°

∠W = 30°

User Zouppen
by
8.0k points