Question

4. If one angle of a triangle is three times a second

angle and the third angle is 20 degrees more
than the second angle, the second angle is
(A) 32°
(B) 34°
(C) 40°
(D) 50°

Answer 1

(A) 32°

Step-by-step explanation:

32 + (32 • 3) + (32 + 20)

to check your work to see that it fits:

angle 2; is equal to 32°,

angle 3; is 32°, plus 20° which is equal to 52°

angle 1; is 32°, times 3, which is equal to 96°

a triangle is equal to 180°,

32 + 52 + 96 = 180