2 Answers

Dmitry Polyakovsky · Answer 1 · 2022-11-12T02:41:05+0000

Answer:

D = 161^o

Explanation:

Given

$\angle B = 19^o$

Required

Find D

The label of the quadrilateral are not clear. However, a more complete question illustrates that B and D are opposite sides.

To solve for D, we make use of:

B + D = 180^o ---- opposite
sides of a
$cyclic \\$ quadrilateral

Make D the subject

D = 180^o -B

D = 180^o -19^o

D = 161^o

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