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olga2289 [7]
3 years ago
14

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
puteri [66]3 years ago
3 0

To find "s", you can use the Pythagorean theorem(which you can only use for right triangles):

a² + b² = c²               (c is the hypotenuse/the longest side of the triangle)


t = 18  (hypotenuse)

r = 12

s = ?

Plug in the numbers into the equation

a² + b² = c²

(12)² + b² = (18)²

144 + b² = 324        Subtract 144 on both sides

b² = 180           Square root both sides

b = √180  or  13.4

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