What we can do is set up an algebraic equation.
our variable can me L for Length
3L+4L+5L=90
now all we have to do is solve
12L=90
---- ----
12 12
L=7.5
now multiple each number in the ratio by 7.5 to find out how long each side is
3 times 7.5 is 22.5
4 times 7.5 is 30
5 times 7.5 is 37.5
the side lengths are 22.5, 30, and 37.5
Answer:
Volume of tent = 189 ft^3
Step-by-step explanation:
triangle area = 1/2 x bh
a = 1/2 x 7 x 6
a = 1/2 x 42
a = 21
now find the volume with a=21 as B and h= 9ft (the length of the tent)
v=Bh
v = 21 x 9
v = 189 ft ^3
Step-by-step explanation:
obtuse angle is an angle whose measure is more than 90 degree but less than 180 degree..
So,
170°
