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SVEN [57.7K]
3 years ago
5

Find the measure of angle A

Mathematics
1 answer:
Lapatulllka [165]3 years ago
3 0

Answer:

Step-by-step explanation:

AB and DC are parallel, so ∠B and ∠C are supplementary angles.

∠B = 180°-∠C = 79°

AD and BC are congruent. ∠A = ∠B = 79°

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What is measure of angle A?
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Answer:

A=53.13\°

Step-by-step explanation:

The figure shows a right triangle.

To calculate the measure of the angle A, you can use the inverse trigonometric function arctangent:

\alpha=arctan(\frac{opposite}{adjacent})

Identify the angle \alpha, the opposite side and the adjacent side:

\alpha=A\\opposite=4cm\\adjacent=3cm

Substitute into \alpha=arctan(\frac{opposite}{adjacent}).

The measure of the angle A is:

A=arctan(\frac{4}{3})\\\\A=53.130\°

Rounded to the nerarest hundreth:

A=53.13\°

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Translate the following expression to an equation in terms of p​: "151.8​​ is what percent of 69​​?"
Lostsunrise [7]

The statement "151.8​​ is what percent of 69​​ is expressed as 0.69p =  151.8

<h3>Equations and expressions</h3>

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Learn more on equations here: brainly.com/question/2972832

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