19. In the adjoining figure, ABCD is an isosceles
trapezium, the values of x, y and z respectively are
D
X
(b) 110°, 70°, 110°
(d) none of these.
(a) 110°, 110°, 70°
(c) 70°, 110°, 110°
70°
А
N
B
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Answers
Answered by
2
Answer:
b option
Step-by-step explanation:
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Answered by
4
Given: Three angles of a quadrilateral are 75°, 90° and 75°.
Let the fourth angle be x.
Using angle sum property of quadrilateral,
75°+90°+75°+x=360°⇒240°+x=360°
⇒x=360°−240°⇒x=120°
So, the measure of the fourth angle is 120°
.
hope this helped :)
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