Question

Given a triangle with leg A = 12 and the hypotenuse C = 20, find the the length of leg B.

please show me step by step how to do it. thx :)

Answer 1

Pythagorean Theorem: the square of the hypotenuse side (C) is equal to the sum of the squares of the legs A and B. Thus\[C ^{2}=A ^{2}+B ^{2}\]

Answer 2

remember pythagoereom theorem

\[(legA)^{2}+ (legB)^{2}= (hypotenuse)^{2}\]

Answer 3

plug in your given info.

\[12^{2}+B ^{2}=20^{2}\]

Answer 4

i just plug em in and thats it?

Answer 5

into that formula, called pythagoreom theorem,

and then solve for B

Answer 6

okay can you also help with this one?

Write an expression for the total Surface Area (SA) of a rectangular prism whose base is a square with side of length m and height of n.

Answer 7

remember surface area is just the total area of the outside

so lets start with the two square bases(the top and bottom)


what is the area of the square?