Question

find the measurement of angle D in the given circle ​

Answer 1

Answer: 120°

Step-by-step explanation:

From the figure, ABCD is a Cyclic Quadrilateral

Given,

∠B = 60°

A property of Cyclic Quadrilateral is that the sum of pair of opposite angles is 180°

therefore,

∠D + ∠B = 180°

∠D = 180 - 60

∠D = 120°

Answer 2

Answer is 120 as
D + B = 180 ( cyclic quadrilateral)
B = 60 ( we know )
So,
D + 60 = 180
D = 180 - 60
D = 120
Hope it helps you

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