1 last one.
A rectangular park is crossed from A to B using the diagonal path. How many meters are saved by not going from A to C to B
Pic = A recentangular with a diagonal line across. Side A down to C vertical is 15 cm, C-B horizontal is 25 cm
2007-02-22 05:55:59 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
sorry, CM i meant M it was a error in my textbook.
2007-02-22 05:56:42 · update #1
The Pythagorean Theorem states that a^2+b^2=c^2. So:
c=sqrt[(15)^2+(25)^2)]
c=sqrt[225+625]
c=sqrt[850]
c=29.155m
So, if the question is how many meters are saved...
(a+b)-c=(25+15)-29.1555=40-29.155=10.845
By crossing the diagonal, you will walk 10.845 meters less than if you walked from A to C to B.
2007-02-22 06:14:30 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Hi You have two sides, 15 and 25 (cm, miles, lightyears... no difference). Find the hypotenuse (15x15 + 25x25, take the square root of the the answer.) 15+25 is long way around, hypotenuse is the shortcut.
2007-02-22 06:05:37 · answer #2 · answered by Cirric 7 · 0⤊ 0⤋
so AC = 15, CB = 25
and your looking for AB right?
so if u do a^2 + b^2 = c^2
15^2 + 25^ = c^2
to find out how many meters are saved, you simply take your answer from above, and subtract it from line AC + line BC.
2007-02-22 06:19:23 · answer #3 · answered by Anonymous · 0⤊ 0⤋
AB = root (15^2+25^2) = 29.155 m
distance saved = (AC + CB) - AB = (15+25) - 29.155
= 10.845 m
2007-02-22 06:04:22 · answer #4 · answered by michiko_chand 3 · 0⤊ 1⤋
properly, c^2 = a^2 + b^2 this difficulty c is the hypothenes, so its 2.3 m 2.3m^2 = a million.2m^2 + b^2 b^2 = 2.3m^2 - a million.2m^2 b^2 = 5.29m^2 - a million.44m^2 b^2 = 3.85m^2 b = a million.ninety six m the top of the cardboard from the tent is a million.ninety six m
2016-11-25 00:11:13 · answer #5 · answered by ? 4 · 0⤊ 0⤋