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3 years ago

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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Answer:

$8.40

Step-by-step explanation:

We can write a proportion to find the total amount last year using the information given. A proportion is two equivalent ratios set equal to each other.

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3 years ago

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Step-by-step explanation:

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2 years ago

Write four numbers that fall between 0.123 and 0.124

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That's what I think but if im wrong im sorry:
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2 years ago

When 23 is subtracted from 5 times a certain number the result is 87

allsm [11]

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To check your answer...
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3 years ago

Choose all that correctly solve for x.

Tamiku [17]

Answer:

Options: A, B, and C correctly solve for x.

Step-by-step explanation:

A).

$\frac{5}{2} x$ = $\frac{15}{2}$

Multiplying both sides by 2 gives;

5x = 15

x = 15 ÷ 5 = 3

∴ This option correctly solve for x.

B).

x + $\frac{7}{2}$ = 7

x = 7 - $\frac{7}{2}$ = $\frac{14}{2} -\frac{7}{2} = \frac{7}{2}$

∴ This option correctly solve for x.

C).

x + 3 = $\frac{21}{5}$

x = $\frac{21}{5} - \frac{15}{5} = \frac{6}{5}$

But the option give x as 5/6 hence this option does not correctly solve for x.

D).

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x = 11/2 ÷ 5 = 11/2 × 1/5 = 11/10

But the option gives x as 10/11 so it does not correctly solve for x.

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3 years ago

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

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