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Vlad [161]
3 years ago
15

Use ΔDEF, shown below, to answer the question that follows: Triangle DEF where angle E is a right angle. DE measures 55. EF meas

ures x. Angle D measures 49 degrees. What is the value of x rounded to the nearest hundredth?

Mathematics
2 answers:
pochemuha3 years ago
5 0
63. 27. Tan 49/1= X/55
fredd [130]3 years ago
3 0

Answer:

x=63.27units

Step-by-step explanation:

It is given that ΔDEF is a right angled triangle which is right angled at E, also the measure of DE is 55 and EF is x with an ∠D=49°.

Using the trigonometry, we have

tan49^{{\circ}}=\frac{EF}{DE}

⇒(1.15)=\frac{x}{55}

⇒x=63.27units

Thus, the value of EF= 63.27 units.

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