Question

calcule o valor de X

Answer 1

Por Pitágoras temos:

17² = 8² + y²

y² = 289 - 64 = 225

y = √225 = 15

15² = x² + 9²

225 = x² +81

x² = 225 - 81 = 144

x = 12

Answer 2

( 17 ) 2 = ( 8 ) 2 + y 2
289 = 64 + y2
y2 = 289 - 64
y2 = 225
y = √225
y = 15

( 15 ) 2 = x2 + ( 9 ) 2
225 = x2 + 81
x2 = 225 - 81
x2 = 144
x = √144
x = 12