We are trying to find the length of the side opposite to the 20 degree angle. We are given the hypotenuse, so we can use the trigonometric function sine to solve for x.
sin(theta) = opposite / hypotenuse
sin(20) = x/18
18sin(20) = x
x = 6.1564
The answer to the nearest tenth is 6.2
The first thing we need to know is how much grass the grasshopper needs to eat.
We have:
"must eat half its body weight in grass each day":
(2 grams) * (1/2) = 1 gram
Then,
"1 blade of grass weighs 0.1grams"
Then the amount you need to eat is given by:
N = (1) / (0.1)
N = 10 blades of grass
Answer:
the grasshopper needs to eat 10 blades of grass each day
