1901953 1901953
  • 02-12-2020
  • Mathematics
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please i need helpp ion get math at all

please i need helpp ion get math at all class=

Respuesta :

tagoddard
tagoddard tagoddard
  • 02-12-2020

Answer:

you have to use the Pythagorean theorem. a^2 + b^2= c^2

72^2 + b^2 = 75^2

5184 + b^2 = 5625 (subtract 5184 from both sides)

b^2= 441 (find the square root of each side)

b= 21

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