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13 September, 13:11

Consider this right triangle with given measures.

A triangle has side lengths 12 centimeters and b. The hypotenuse is 15 centimeters.

What is the unknown leg length?

Pythagorean theorem:a2+b2=c2

122+b2 = 152

144 + b2 = 225

b2 + 81

b = cm

+5
Answers (2)
  1. 13 September, 14:10
    0
    its 9 my doods
  2. 13 September, 14:54
    0
    9

    Step-by-step explanation:

    So, we have 144+b^2=225.

    That means b^2=81

    To get rid of the squared part of b^2, we square root both sides.

    This gets you b = + or - 9, but since there's no negative side length, it's positive 9.
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Home » Mathematics » Consider this right triangle with given measures. A triangle has side lengths 12 centimeters and b. The hypotenuse is 15 centimeters. What is the unknown leg length? Pythagorean theorem:a2+b2=c2 122+b2 = 152 144 + b2 = 225 b2 + 81 b = cm
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