hi I am free to talk what is talk
1)
-280
= -14<span>π / 9
answer is B.
----------------------
2)
3</span><span>π/ 5
</span><span>= 108
answer
C. 108 degrees
3)
cos (3</span>π/4) = -√2 / 2
sin ((3π/4) = √2 / 2
cos (3π/4) and sin ((3π/4) = -√2 / 2 * √2 / 2
<span>
answer is
</span> -√2 √2
------ * --------
2 2<span>
</span>
Answer:
14π cm
Step-by-step explanation:
Circumference of a circle given the diameter is :
πd
We simply substitute the value given in the image into our formula to find our answer:
πd = π×14 = 14π
Units will be cm as circumference is a length
This is our final answer as the question states to leave it in pi form .
Hope this helped and brainliest please
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