Answer these 5 questions.
Who sends quickly i will mark as brainliest answer for them
Attachments:
Answers
Answered by
1
Answer:
76.) 10°
77.) 30°
78.) 18°
79.) 20°
80.) Question unclear
Step-by-step explanation:
76.) ∠AOB = 180° [Straight Line]
∠AOC + ∠AOD = 85° + 85° = 170°
∠COD = ∠AOB - (∠AOC + ∠AOD)
∠COD = 180° - 170°
Hence, ∠COD = 10°
77.) 2x + 3x + x = 180° [Straight Line]
6x = 180°
x = 180°/6
x = 30°
Acc, to Sum
x = y [Vertically Opposite Angles]
Hence, y = 30°
78.) y/x = 5
y = 5x --(1)
and z/x = 4
z = 4x --(2)
Acc to sum,
x + y + z = 180° --(3)
Substitute (1) and (2) in (3)
x + 5x + 4x = 180°
10x = 180°
x = 180°/10°
Therefore, x = 18°
79.)Acc to Sum
(3x + 10) + x = 90°
4x = 90° - 10°
x = 80°/4
Hence, x = 20°
80.) Question Unclear
Similar questions