SOLUTION: Find the exact lengt of the hypotenuse of this right triangle. give exact answer. A=9 B=6 c=

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Question 64196: Find the exact lengt of the hypotenuse of this right triangle. give exact answer.
A=9
B=6
c=

Found 2 solutions by praseenakos@yahoo.com, chitra:
Answer by praseenakos@yahoo.com(507) About Me  (Show Source):
You can put this solution on YOUR website!
QUESTION


Find the exact lengt of the hypotenuse of this right triangle. give exact answer.
A=9
B=6
c=

ANSWER


In a right triangle,

Hypotenuse)^2 = A^2 + B^2
= 9^2 + 6^2
= 81 + 36

= 117

Therefore hypotenuse = square root of 117

= 10.816653826391.....

You will not get an exact value, because Sqrt of 117 is an irrational number.

We can take the approximate value as 10.82 correct to two decimals.
Or we can take 10.817 correct to three decimal and so on.

Hope you understood.

Regards.
praseenakos@yahoo.co.in


Answer by chitra(359) About Me  (Show Source):
You can put this solution on YOUR website!
The lenght of the hypotenuse of a right angeled triangle is determined by using the Pythagoras Theorem.
The Pythagoras Theorem states that " the square of the hypotenuse is equal to the sum of the squares of the other two sides".
Hence if the sides of the triangle are represented by a, b, c where c is the hypotenuse, then by the theorem:
+a%5E2+%2B+b%5E2+=+c%5E2

By data, we have,

a = 9, b = 6 and to find c = ?

Substitute the values of a and b in the above formula. Hence, we get:

%289%29%5E2+%2B+%286%29%5E2+=+c%5E2

81+%2B+36+=+c%5E2

117+=+c%5E2

Hence, taking the square root, we get:

c = 10.8166

rounding off, we get:

c = 10.82

Happy calculating!!!!