Question

PLZ HELP ME- The measure of b is __. a0

Answer 1

Answer:

The answer is 21

Step-by-step explanation:

Answer 2

Answer:

b = 21

Step-by-step explanation:

By the Pythagorean Theorem, which states that if you have a right angle with legs of a and b, and a hypotenuse of c, then a^2+b^2=c^2. Use this on the right triangle in the diagram to get 841 = 400 + b^2, or 441 = b^2 and b = 21.

Note: I think that the 1st diagram was unnecessary. ;)