Answer:
1 19/24
Step-by-step explanation:
Answer and Step-by-step explanation:
Answer:
Here is the answer. Solved
Hello!
Let's think of this large triangle as a whole. If we add up the angles, we have 115°. The adjacent side to this angle is 9 feet. Let's try finding the opposite side. The tangent deals with these two.
tan115≈2.14
Therefore, x/9=2.14
We multiply both sides by 9 to find x.
x=19.26
Now let's find the length BC and subtract it from 19.26 to find our length. As we will deal with opposite and adjacent sides, we will find the tangent.
tan45=1
This means x/9=1
Therefore, BC=9
Now we can subtract from 19.26
19.26-9=10.26
Therefore, this length is 10.26 feet
I hope this helps!
Answer:
4L +4W +16 square inches
Step-by-step explanation:
The area of the border is the equivalent of that of a rectangle with a width equal to the width of the border, and a length equal to the length of the midline of the border. That length is the perimeter of the rectangle that is L+2 units long and W+2 units wide.
border midline length = 2((L+2) +(W+2)) = 2L +2W +8
Then the border area is ...
border area = (border width)(border length) = (2)(2L +2W +8)
border area = 4L +4W +16 . . . square inches
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You can also figure this as the difference between the area of the rectangle with the border and the area of the rectangle inside the border:
border area = total area - canvas area
= (L+4)(W+4) -LW = LW +4L +4W +16 -LW
= 4L +4W +16 . . . . square inches
