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Trig Ratios with Calculator Intro

Trig Ratios with Calculator Intro

Assessment

Flashcard

Mathematics

9th - 10th Grade

Practice Problem

Hard

CCSS
HSG.SRT.C.6, HSG.SRT.C.7, HSF.TF.B.7

+3

Standards-aligned

Created by

Wayground Content

FREE Resource

Student preview

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15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the tangent ratio in a right triangle?

Back

The tangent ratio is defined as the ratio of the length of the opposite side to the length of the adjacent side. It is expressed as: tan(θ) = opposite/adjacent.

Tags

CCSS.HSG.SRT.C.6

2.

FLASHCARD QUESTION

Front

How do you calculate tan 65° using a calculator?

Back

To calculate tan 65°, enter '65' and then press the 'tan' button on your calculator. The result is approximately 2.14.

3.

FLASHCARD QUESTION

Front

What is the mnemonic for remembering trigonometric ratios?

Back

The mnemonic is 'Soh Cah Toa', which stands for: Soh = Sine = Opposite/Hypotenuse, Cah = Cosine = Adjacent/Hypotenuse, Toa = Tangent = Opposite/Adjacent.

Tags

CCSS.HSG.SRT.C.6

4.

FLASHCARD QUESTION

Front

What is the cosine ratio in a right triangle?

Back

The cosine ratio is defined as the ratio of the length of the adjacent side to the length of the hypotenuse. It is expressed as: cos(θ) = adjacent/hypotenuse.

Tags

CCSS.HSG.SRT.C.6

5.

FLASHCARD QUESTION

Front

How do you calculate cos 30° using a calculator?

Back

To calculate cos 30°, enter '30' and then press the 'cos' button on your calculator. The result is approximately 0.87.

Tags

CCSS.HSG.SRT.C.7

6.

FLASHCARD QUESTION

Front

What is the inverse cosine function?

Back

The inverse cosine function, denoted as cos⁻¹ or arccos, is used to find the angle whose cosine is a given number.

Tags

CCSS.HSF.TF.B.7

7.

FLASHCARD QUESTION

Front

How do you calculate cos⁻¹(0.8863) using a calculator?

Back

To calculate cos⁻¹(0.8863), enter '0.8863' and then press the 'cos⁻¹' or 'arccos' button on your calculator. The result is approximately 27.6°.

Tags

CCSS.HSF.TF.B.7

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