The height of a rectangle is 3m and the diagnol is 5m. What is the length of the rectangle?
2007-04-08 15:35:26 · 5 answers · asked by amandablake3194 2 in Science & Mathematics ➔ Mathematics
It's not about rectangles at all. It's the pythagorous theorem
A squared plus B squared = C squared
In your case
A= height
B = Length
C= Diagonal
25-9=16 take the square root of 16 and you'll find B = 4
2007-04-08 15:40:33 · answer #1 · answered by babyducktravel 1 · 0⤊ 0⤋
4
2007-04-08 22:39:17 · answer #2 · answered by ..... 3 · 0⤊ 0⤋
come on, Pythagorean theorem. sides of a triangle. a and b are short sides, c is the longest or hypotenuse. a is the height, c is the diagonal. b is the side. a2+b2+c2. 3 squared is nine, five squared is 25. 25-9=b2, or 16. the square root of 16 is 4. the length is 4.
pythagorean theorem only works with right triangles.
2007-04-08 22:49:40 · answer #3 · answered by carl 2 · 0⤊ 0⤋
Let a = 3m
b = length
c = hypoteneuse 5m
a squared + b squared = c squared.
c squared - a squared = b squared.
c squared = 25m, a squared = 9m
25-9=16
sq root of 16 = 4.
The length of the rectangle is 4m.
2007-04-08 22:43:14 · answer #4 · answered by Me in Canada eh 5 · 0⤊ 0⤋
4m
2007-04-08 22:39:14 · answer #5 · answered by ong_joce 2 · 0⤊ 0⤋