How to convert Fahrenheit to Celcius

Topic:-Temperature
Celsius (also known as centigrade) is a temperature scale that is named after the Swedish astronomer Anders Celsius (1701–1744), who developed a similar temperature scale two years before his death. The degree Celsius (°C) can refer to a specific temperature on the Celsius scale as well as serve as a unit increment to indicate a temperature interval (a difference between two temperatures or an uncertainty).

Question:-
The temperature in Celcius degrees 'C' can be changed to Fahrenheit degrees 'F' by the formula F = (1/5)*(9C+160). Make C the subject of the formula, then find C when F = 212 degrees.
Answer:-
F = (1/5)*(9C+160)
Multiply both sides with 5, we get
5F = 5*1/5*(9C+160)
5F = 9C+160
5F-160 = 9C
5(F-32) = 9C
C = 5/9*(F-32)
If F = 212 degrees
Substitute F value in above equation, we get
C = 5/9*(212-32)
C = 5/9*180
C = 5*20
C = 100 degrees.

Topic:-Supplementary Angles

Two Angles are Supplementary if they add up to 180 degrees.

They don't have to be together to be supplementary, just so long as the total is 180 degrees.

This math help can help you with a question like

Question:-

What is supplementary angles ,explain with an example ?

Answer:-

two angles are supplementary ,if they add up to 180°
Example-1
Here in the following diagram you can see ιA and ιB are supplemtary angles ,because

ιA+ιB=140°+40°

  = 180°

180° means a straight angle.











So ,ιA and ιB are supplementary angles .

Example 2

Here these two angles also supplementary


ιA+ιB=120°+60°

 = 180°