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In introductory trigonometry, what does ‘similar right triangles’ mean?
Correct answer(s):
- triangles with equal angles and proportional side lengths
In introductory trigonometry, what does ‘angle of depression’ mean?
Correct answer(s):
- the angle made when looking downward from a horizontal line
In introductory trigonometry, what does ‘angle of elevation’ mean?
Correct answer(s):
- the angle made when looking upward from a horizontal line
In introductory trigonometry, what does ‘tangent ratio’ mean?
Correct answer(s):
- opposite ÷ adjacent
In introductory trigonometry, what does ‘cosine ratio’ mean?
Correct answer(s):
- adjacent ÷ hypotenuse
In introductory trigonometry, what does ‘sine ratio’ mean?
Correct answer(s):
- opposite ÷ hypotenuse
In introductory trigonometry, what does ‘adjacent side’ mean?
Correct answer(s):
- the side next to the chosen angle, not the hypotenuse
In introductory trigonometry, what does ‘opposite side’ mean?
Correct answer(s):
- the side across from the chosen angle
In introductory trigonometry, what does ‘hypotenuse’ mean?
Correct answer(s):
- the longest side of a right triangle, opposite the right angle
In introductory trigonometry, what does ‘obtuse angle’ mean?
Correct answer(s):
- an angle greater than 90° but less than 180°
In introductory trigonometry, what does ‘acute angle’ mean?
Correct answer(s):
- an angle smaller than 90°
In introductory trigonometry, what does ‘right angle’ mean?
Correct answer(s):
- an angle of exactly 90°
A storage box is a rectangular prism measuring 9 cm by 8 cm by 3 cm. What is its volume?
Correct answer(s):
- 216 cm³
A storage box is a rectangular prism measuring 11 cm by 5 cm by 2 cm. What is its volume?
Correct answer(s):
- 110 cm³
In triangle ABC, angle A is 24° and angle B is 40°. What is angle C?
Correct answer(s):
- 116°
A storage box is a rectangular prism measuring 13 cm by 2 cm by 8 cm. What is its volume?
Correct answer(s):
- 208 cm³
In triangle ABC, angle A is 34° and angle B is 60°. What is angle C?
Correct answer(s):
- 86°
A storage box is a rectangular prism measuring 15 cm by 8 cm by 7 cm. What is its volume?
Correct answer(s):
- 840 cm³
In triangle ABC, angle A is 44° and angle B is 80°. What is angle C?
Correct answer(s):
- 56°
A storage box is a rectangular prism measuring 5 cm by 5 cm by 6 cm. What is its volume?
Correct answer(s):
- 150 cm³