if a right trangle with a =3 abd c=11, find b to three decimal places. how can i find the decimal place using what method?
2006-12-12 07:16:25 · 4 answers · asked by Anonymous in Education & Reference ➔ Other - Education
use the pythagorean theorem
a^2+b^2=c^2
subtract a^2 from both sides
b^2=c^2-a^2
square root both sides
b=sqrt(c^2-a^2)
2006-12-12 07:26:33 · answer #1 · answered by americanmimeboy 4 · 1⤊ 0⤋
In a right triangle, the Pythagorean Theorem helps out. The Sure of the Hypotenuse, or the longest side is equal to the sum of the squares of the other two sides. If you know the lengths of any two of the sides, you should be able to figure out the length of the third side. For instance if side c is the Hypotenuse, 11 squared, or 121= a squared, 9+ c squared. To get c, subtract 9 from 121. 112, get the square root of 112 and you have c.
2006-12-12 07:28:06 · answer #2 · answered by fangtaiyang 7 · 0⤊ 1⤋
a2+b2=c2
a=3 b=x c=11
9 + x = 121
x = 112
x=10.583
I cannot remember the proper terminology for it.
2006-12-12 07:28:30 · answer #3 · answered by miss bean 3 · 0⤊ 0⤋
a^2+b^2=c^2
9+b^2=121
b^2=112
b=the square root of 112
b=10.583
2006-12-12 07:25:44 · answer #4 · answered by free-bird 2 · 2⤊ 0⤋