sine
Pronunciation
Noun
B2 Upper-intermediate
Quick answer
In a right triangle, the ratio of the length of the side opposite a given angle to the length of the hypotenuse.
Test yourself
Which word fits the gap? "She calculated the height of the building using the _____ of the angle of elevation."
Answer: sine
In your own words, what does "sine" mean?
In a right triangle, the ratio of the length of the side opposite a given angle to the length of the hypotenuse.
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