Sum of all interior angles = (n - 2) x 180
Sum of all interior angles of a 18-gon = (18 - 2) x 180 = 2880°
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Answer: 2880°
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Answer:
$24.15
Step-by-step explanation:
Since we know its 35% of the original price we simply do 69×35% which equals 24.15. You can do it on your own work, or on a calculator to check.
You could also divide 69 by a hundred, which gives you .69 and multiply it by 35 which gives you the same answer
Answer:
d)13sin75/sin55
Step-by-step explanation:
1)Given
inΔVWU, ∠V= 75°
∠U= 50°
Finding ∠W:
∠W= 180-(75+50)
=180-(125)
= 55
Now finding x, using law of sine
x/sinV = 13/sinW
Putting the values in above we get:
x/sin75=13/sin55
Re-arranging, we get:
x= 13sin75/sin55 !