2*M+3
7
11
Add together the 10 sides
To convert from celsius to fahrenheit, you multiply by 9/5 and add 32. A rough conversion is to double and add 30.
1. Write a chemical symbol for each element mentioned in the order given in the name. 2. Add subscripts according to prefixes in the name.
Just add up the four sides.You add up the lengths of the four sides.
Measure and add together the 4 sides
Add together the lengths of the four sides; or add the lengths of the two different sides and then double it.
Add together the lengths of each side of the plane shape.
P = a + b + cyou just add the sides together.Just add up the three sides of the triangle.
To find the perimeter of a rectangle simply add the length and width then double your answer.
If you have the length and the width, add them together and double that sum.