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Ludmilka [50]
3 years ago
13

The base angle of an isosceles triangle measures 54 degrees. What is the measure of its vertex angle?

Mathematics
1 answer:
ELEN [110]3 years ago
6 0

Answer:

108

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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I need help on this problem
Arte-miy333 [17]

Answer: QR=4.04

Step-by-step explanation:

For this exercise you must use the followinG Trigonometric Identity:

tan\alpha=\frac{opposite}{adjacent}

In this case, given the right triangle PQR, you can identify that:

\alpha=60\°\\opposite=PR=7.0\\adjacent=QR

Then, the  next step is to substitute those values into tan\alpha=\frac{opposite}{adjacent}:

tan(60\°)=\frac{7.0}{QR}

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So you get that this is:

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dangina [55]
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hichkok12 [17]

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