Answer:

Step-by-step explanation:
If a, b and c are the lengths of the triangle's sides, then

Since
then

Thus,

I believe the answer is A
Answer:
The answer is that Lara would need 9 pages to store all her photos.
Step-by-step explanation:
You would need to first divided 43 divided by 5 to get 8.6.
However, you can't have a tenth of a page so you would have to round to 9 so the answer is that Lara would need 9 pages to store all her photos.
Answer:
117 degrees
so a line is 180 degrees so the 63 +x=180
find x
180-63=117
Answer:
Width = 4 feet
Step-by-step explanation:
Let l = length
Let w = width
l = 3w
l - w = 8
3w - w = 8
2w = 8
w = 4