Whole number - A number w/out fractions; an integer. Digit - Any of the numerals from 0-9, especially when forming part of a number. Place value - The numerical value that a digit has by virtue of its position in a number. Rounded number - A number that ends in 0. For example, 40, 450, or 4000. Equals - Of the same measure, quantity, amount, or number as another. -Hope this helps. : )
We see here in the diagram that the base is a. We know this because the height is perpendicular to it. We also know the height is bsin(C) which, when replace h for bsin(C) and a for the base, we get A=absin(C), which is the second option.