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26 votes
Ed puzzle what are all the angles for#5

Ed puzzle what are all the angles for#5-example-1
User Ayoub ZAROU
by
2.7k points

1 Answer

24 votes
24 votes

9514 1404 393

Answer:

30°, 60°, 90°

Explanation:

The value of x = 10 is correctly found. Then the angles are ...

3x = 3(10) = 30°

7x -10 = 7(10) -10 = 70 -10 = 60°

and the right angle: 90°

The angles shown in figure 5 are 30°, 60°, 90°.

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Additional comment

The answer choices make no sense, as none of them has a sum of 180°. The entire point of the exercise is that the sum of angles in a triangle is 180°.

User Cezary Butler
by
3.2k points