Trigonometric Functions in Right-Angled Triangle I

Project ID: 
7200000081
Accepted: 
SubArea: 
Type: 
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Question: 
The values of some parameters of a right-angled triangle $ABC$ with the right angle at vertex $C$ are given (marked as shown in the figures). Match each triangle with the corresponding measure of the angle $\alpha$ rounded to the nearest whole number (use a calculator).
Questions Title: 
Triangle
Answers Title: 
Measure of the angle $\alpha$
Question 1 Image: 
Answer 1: 
$$60^{\circ}$$
Question 2 Image: 
Answer 2: 
$$54^{\circ}$$
Question 3 Image: 
Answer 3: 
$$69^{\circ}$$
Question 4 Image: 
Answer 4: 
$$63^{\circ}$$
Answer 5: 

$$66^{\circ}$$

Answer 6: 
$$57^{\circ}$$