Three angles of a trapezium are 70°, 80° and 110°. Its fourth angle is:
(a) 120°
(b) 130
(c) 210
(d) None of these
Answers
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0
Answer:
(d) None of these
Step-by-step explanation:
Trapezium is a quadrilateral. The sum of all angles of a quadrilateral is always 360 degrees.
Let us say that the fourth angle is x.
Then,
x + 70 + 80 + 110 = 360
x + 260 = 360
x = 100
Answered by
0
Answer:
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Step-by-step explanation:
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