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I need Help finding y and z. This is a special right triangle questions. The answer as well should not be a decimal.

I need Help finding y and z. This is a special right triangle questions. The answer-example-1
User Prasinous
by
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1 Answer

22 votes
22 votes

Answer

x = 3 √2

y = 1.5 √2 = (3/2) (√2)

z = 1.5 √6 = (3/2) (√6)

Step-by-step explanation

In a right-angle triangle, the side opposite the right angle is the Hypotenuse, the side opposite the given angle that is non-right angle is the Opposite and the remaining side is the Adjacent.

For this question, there are two triangles. The one with two 45° and the one with a 60°

Starting with the triangle with 45°,

Hypotenuse = 6

Opposite = x

Adjacent = x (Two of the angles being equal means two of the sides are equal).

Angle = 45°

Using trignometric ratios, we know that SOH means

Sin 45° = (Opp/Hyp)

Sin 45° = (x/6)

Cross multiply

x = 6 (Sin 45°)

Sin 45° = (√2)/2 = 0.5 √2

x = 6 (Sin 45°) = 6 (0.5 √2) = 3√2

We can then go to second triangle with 60°

Hypotenuse = x = 3√2

Opposite = z = ?

Adjacent = y = ?

Using trignometric ratios, we know that SOH means

Sin 60° = (Opp/Hyp)

Sin 60° = (z/x)

Cross multiply

z = x (Sin 60°)

x = 3√2

Sin 60° = (√3)/2 = 0.5 √3

z = x (Sin 60°)

z = 3√2 (0.5√3)

z = 1.5 √6

Then for y, we know that CAH means

Cos 60° = (Adj/Hyp)

Cos 60° = (y/x)

Cross multiply

y = x (Cos 60°)

x = 3√2

Cos 60° = 0.5

y = x (Cos 60°)

y = 3√2 (0.5)

y = 1.5 √2

Hope this Helps!!!

User Mackan
by
2.9k points