Question

Sine rule question with combined triangles

Answer 1

Angle BDC measures 98°.

Set your calculator to degree mode.

(sin C)/17.2 = sin(47°)/14.5

sin C = 17.2sin(47°)/14.5

C = 60.174°

x = angle DBC = 180° - (98° + 60.174°)

= 21.826°