The size of a computer monitor is usually measured along the diagonal. an 18-in. rectangular monitor has a height of 9 in.

what is the length of base of the monitor, to the nearest tenth of an inch?

enter your answer as a decimal in the box.

__ in.

To solve this problem, you need to use the following equation:
a^2 + b^2 = c^2 
the diagonal of your equation is c, while either a or b can be your length or width. 
once you've decided which letter will be the length (the 9 inches), you will put those numbers into your equation and solve for you other letter.
9^2 + b^2 = 18^2
once youve solved for b, you will find that the answer is 15.6 inches
let me know if you want to see the steps of how i solved equation
:)

Your answer would be ahere is how: perimeter is how long all the sides are. in a rectangle, there are two sets of parallel sides. so, to find this, we would to the following.(15x2)+(4x2)30+838if you have questions ask! and mark me brainliest! i really wanna level up : 3

Why are u not just putting the numbers this is to much