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777dan777 [17]
3 years ago
9

The angle between the incident ray and reflected ray is 90°. Calculate the angle of incidence and the angle of reflection.​

Mathematics
1 answer:
Olegator [25]3 years ago
6 0

Answer:

Step-by-step explanation:

The angle of incidence and reflection is 45°

The angle between them is 90°

they lie on the same plane, and angle of incidence = angle of reflection

the sum of all the angles is 180°

let angle of incidence and reflection be x

therefore,

90 + 2x = 180

x = 45°

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3 years ago
Please help, thanks.
tangare [24]

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Which of the following is true of a parallelogram? A.) Opposite sides are congruent. B.) The sum of its angle measures is 360°.
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Answer:

opposite side are congruenyt

Step-by-step explanation:

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3 years ago
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Which is bigger: 17.5% or 1/6
elena-s [515]


In order to find this out, let's convert both of them into percents. Since 17.5 is already a percent, we only have to convert 1/6 into a percent. To convert 1/6 into a percent, you have to divide the numerator by the denominator. If you do that, you will get 0.1666..... as a repeating decimal. Now, multiply the decimal by 100 or just move the decimal 2 spaces to the right to get the percent. If you do that, you will get 16.6%. Since it is a repeating decimal, you can round it to 16.7%. So, 17.5% is larger than 1/6.

Hope it helps :)

6 0
3 years ago
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I’m about to cry from frustration. Help please before I die
kvv77 [185]

Answer:

\frac{1}{3}x+16=37

63 Jelly Beans

Step-by-step explanation:

The unknown is the number of jelly beans originally in the bag or x

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2 years ago
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