jr264118 jr264118
  • 04-02-2021
  • Mathematics
contestada

Find X
put step by step please

Find X put step by step please class=

Respuesta :

swoonamifishy
swoonamifishy swoonamifishy
  • 04-02-2021

Answer:

x = 29.7 or 29.69848480

Step-by-step explanation:

Use the formula a² + b² = c²

21² = 441

20² = 400

400 + 441 = 882

√882 = 29.7

You square the number at the end to cancel out the squared number, since both 21 and 20 aren't originally squared.

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