Question

Which is the three angle of the triangle are form by the sides 3, 4, 5?
a) 45°,60°,75° b) 40°,60°,80°
c) 60°,60°,60° d) 35°,75°,70°

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Answer 1

None of these

A triangle of side 3, 4, 5 has a right angle and the side with length 5 units as the hypotenuse.

The three angles of this triangle are 37°, 53°, 90°

The angle opposite to side of length 3 unit is 37° and the angle opposite to 4 unit is 53°

Answer 2

Answer:

45°, 60°, 75°

Step-by-step explanation:

5x + 4x+ 3x = 180

12x = 180

x = 180/12

x = 15

hence, 3x= 3×15 = 45°

4x = 4×15 = 60°

5x =5×15 = 75°