Find each marked side or angle show the step by step

Question

asked Jul 13, 2022 14.8k views

1 Answer

Webspirit · Answer 1 · 2022-07-17T02:09:57+0000

Answer:

taking b as reference angle

using cos rule

cos b=b/h

cos b=1.3/2.8

cos b=0.46

cos 62 =0.46

Explanation:

therefore the value of b is 62 degree