In this lesson, we will learn how to find missing sides and angles in triangles using sine and cosine for 30 and 60 degrees.
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Fill in the gaps: In a right-angled triangle, the ratio of the length of the side adjacent side to the length of the hypotenuse called the ...................
Correct answer: cosine ratio
cosine ratio
hypotenuse
sine ratio
Q2.
What is the sine ratio of a right angled triangle with angle 30 degrees?
0.2
Correct answer: 0.5
0.5
0.87
Q3.
Which image shows the sides of the triangle correctly labelled (in relation to angle a)?