Find the length of the hypothenus of a right triangle with sides of 20 cm and 15 cm.?

Answer 1

Pythagorean Theorem

c² = √a ² = b²

c² = √(20)² + (15)²

c² = √400 + 225

c² = √625

c = 25

The answer is c = 25

The length os the hypotenus is 25 cm

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Answer 2

This problem pops up in MANY tests in one way or another.

It is the classic 3, 4, 5 right triangle; the sides being 3 and 4 long, the hypothenus is 5.

In your case, 20 cm is equivalent of the 4 side, and 15 cm is equivalent of 3 side. They are a multiples of 5.

Therefore, your hypothenus is 5 * 5 = 25 cm.

Hope this helps!

Answer 3

This is a classic 3,4,5 triangle, with sides 15 and 20. Dividing both by 5 we see that the ratio of the sides is 3 4 Therefore the hypotenuse must be 25, as 15^2 + 20^2 = 25^2

Answer 4

Pythagorean theorem = a^2 + b^2 = c^2

You need to solve for c.

20^2 + 15^2 = c^2

400 + 225 = c^2

c^2 = 625

c = sqrt(625)

c = 25

Answer 5

20 squared = 400
15 squared = 225
add 400 + 225 = 625
take the square root of 625
and get 25 cm

Answer 6

The length of the hypotenuse of a right angle triangle is the square root of the sum of the square of each of the other sides

(20X20) + (15X15) = 625
Square root of 625 = 25
Answer: 25cm

Refer to Pythagoras Thereom

http://mathworld.wolfram.com/PythagoreanTheorem.html

Answer 7

h = sqrt((20 * 20) + (15 * 15))
h = sqrt(400 + 225)
h = 25

Answer 8

25 cm,
good site for this: http://www.1728.com/pythgorn.htm
Enter sides, solve for answer.

Answer 9

im not doin it for you
http://en.wikipedia.org/wiki/Triangle