p.4 Passage: The angles of a quadrilateral are in ratio 3:5:7:9
1. If measure of angles be 3x, 5x, 7x, 9x, then the value of x is
20°
15°
25°
10°
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1
Step-by-step explanation:
Answer
Correct option is
A
36,60,108,156
Let the four angles of the quadrilateral be 3x, 5x, 9x and 13x
3x+5x+9x+13x=360
∘
[sum of all angles of the quadrilateral is 360
∘
]
30x=360
∘
x=12
∘
Hence, the angles of the quadrilateral are 3×12
∘
=36
∘
,5×12
∘
=60
∘
,9×12
∘
=108
∘
and13×12
∘
=156
∘
Answered by
1
Answer:
15 degree is answer
Step-by-step explanation:
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