Not for sure but maybe, -0.39285714285 if it’s correct hope it helps!
Answer:
12.22
Step-by-step explanation:
There are 360° in a full circle
The circumference of a circle is c = 2πr
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The lenght of the arc will be the portion of the circumferece included in the angle
l = (∅/360) * 2πr
plug in the knowns
l = (70/360) * 2π(10)
l ≈ 12.22
Answer:
50°
Step-by-step explanation:
sin 40° = cos 50°
Hope it helps you in your learning process.
Remember

so let's rewrite them
25=5^2
so




yep, that's definitely true