Awall in marcus bedroom is 8 1/3 feet high and 16 1/5 feet long if he paints 1/3 of the wall blue how many square feet will be blue

First, we need to find the area of the wall. The formula we use is A=bh. For this problem, b = 16 1/5 ft and h = 8 1/3 ft. Plug the given information into the equation like so:

From this, we know the area of the entire wall is 135 sq ft. 

To find out how much was painted, we multiply the total area by the ratio painted:

45 square feet of the wall was painted blue.

Hope this helps!

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle