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2 years ago

The diagram shows a convex polygon solve for b

Mathematics

1 answer:

ladessa [460]2 years ago

7 0

Answer:

b = 68°

Step-by-step explanation:

he's your solution

=> angle of a polygon is given by =

(2n -4)*90°

=>(2*8 - 4) *90°

=> 12*90°

=> sum of all angles = 1080°

=> now, 150°+144°+127°+2b+b+50°+2b+11°+2b-20°+2b+6° = 1080°

=> 9b + 468° = 1080°

=> 9b = 612°

=> b= 612°/9

=> 68°

hope it helps

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