Change into Celsius scale :
a. 212 ° F b) 77 ° F
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Answer:
a. (212 - 32) 5/9
= 180 x 5 / 9
= 20 x 5
= 100 ° C
b. (77 - 32) 5/9
= 45 x 5 / 9
= 5 x 5
= 25 ° C
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