Question

Calculate the unknown wide in each following.
sin 20° = 9/15

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Answer 1

Answer:

12

Step-by-step explanation:

sin○ =p/h

sin 20=9/15

p=9 h=15

using Pythagorean theorem,

15^2 = 9^2+ b^2

b= sqrt 225-81

= sqrt 144

thus b= 12

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Answer 2

Answer:

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