Depends on where the x is. If in the equilateral triangle, x is the only angle missing then you do whatever two numbers they gave + x = 180 then solve.
If it’s in an isosceles and it’s the same situation, you do x = the side with the same amount of degrees (you will know because there will be a line on the “x” and given side
The formula for area is base times height, or height x width So if the window is 16 inches wide then 336 divided by 16 equals the height 336 divided by 16 is 21. Check 21 x 16 = 336 336 = 336 :)
