PQR is a straight line. Determine the sizes of the angles marked a, b and c in the triangle shown.
Attachments:
Answers
Answered by
1
Answer:
in triangle ABC
A° + B°. + C°. = 180°. ( sum of all angles of a triangle = 180)
61+59+a= 180
a=180-120
a= 60°
angle a + angle b + 91. = 180° (linear pair)
60+91+b=180
b = 180- 151
b = 29°
in triangle CDE
angle C + angle D + angle E = 180°
29+85 + c = 180°
c = 180-114
c = 66°
( the angle B in the image is not clear if it is 39 or 59
you can adjust with the correct one
Similar questions