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January 30, 2015

January 30, 2015

Posted by **Hoema** on Saturday, May 12, 2012 at 5:59pm.

- math(geometry) -
**Ms. Sue**, Saturday, May 12, 2012 at 6:05pmI'm guessing that you mean the hypotenuse is 8 cm.

a^2 + c^2 = b^2

6^2 + c^2 = 8^2

36 + c^2 = 64

c^2 = 64 - 36

c^2 = 28

c = 5.2915

If you need to find the hypotnuse -- then

6^2 + 8^2 = c^2

36 + 64 = c^2

100 = c^2

10 = c

The second solution is probably the one you need.

- math(geometry) -
**Ms. Sue**, Saturday, May 12, 2012 at 6:13pmI think I understand now. You are looking for the LENGTH of the hypotenuse.

- math(geometry) -
**Steve**, Saturday, May 12, 2012 at 6:27pmor, if D is the foot of the altitude on the hypotenuse AB, then by similar triangles

CD/CA = CB/AB

CD/6 = 8/10

CD = 48/10 = 4.8

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