Answer:
70
Step-by-step explanation:
Graph it
70°
<1 = <3. (Vertically Opposite Angles)
Hence, value of <3 will be equal to <1 i. e.
<3 = <1 = <u>70°(Ans)</u>
This is the solution to your question.
THe rider and the motorcycle mass togther will be 326.
237+89=326