Angle Subtended by a Chord at a Point
Quick practice
Question 1 of 5
ABCD is a quadrilateral whose vertices are on a semicircle such that AB = BC = CD = 10 cm and AD is diameter of the circle having centre at O. Find the perimeter of the quadrilateral ABCD.
A
40 cm
B
45 cm
C
50 cm
D
25 cm
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