8
well, a^2 + b^2 = c^2
c is hypotenuse and a and b are either the adjacent or the opposite.
a^2 + 3^2 =5^2
a^2= 25 -9
a^2=16
a = 4
therefore the ladder reaches 4 meters high.
15 meters, or less, depending on the angle.
13.6 feet
16
This question is where you use the Pythagorean Theorem. Go to http://en.wikipdedia.org/ and search for Pythagorean Theoremif you don't already remember what it is, and good luck.
Yes, there would. For example, how high a ladder do you need to reach the roof? Answer is the difference between the roof height and your reach.
8
10.9 [11]
30 feet. And you don't have to round it to the nearest foot. It's exactly 30 feet.
18
14
Arthur Pythagoras rules! 12 x 12 = 3 x 3 + x2, so x2 = 144 - 9 and x = sqrt 135 = 11.62 so to the nearest foot it reaches 12 feet (actually 11.62)
9.2
1. He climbed up the ladder to get the book off the bookshelf in the library. 2. I climbed the ladder to paint the house. 3. She used a ladder to reach the top of her bookshelf.
The main purpose of a ladder is to allow people to get higher than they can reach. A ladder works by leaning it up against a solid surface and then the person climbs the ladder using the rungs.
Round the base angle to 70 degrees and use the sine ratio: 30*sine 70 degrees = 28.19077862 feet Height of ladder from the ground = 28 feet to 2 s.f.
15 meters, or less, depending on the angle.
at Jack and Annie's house there is a tire swing, you jump and stand in it; the tire will fall off the rope. You push the tire through the woods until you reach the treehouse. At the tree house you jump on the tire and land on the ladder. Climb the ladder.