Convert 86 degree Fahrenheit into degree Celsius

30

Explanation:

To convert from Fahrenheit to Celsius, you need to subtract 32 and multiply by 5/9. 86-32=54, and 54*5/9=30. Hope this helps!

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

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