leslierosa2000
leslierosa2000 leslierosa2000
  • 15-03-2019
  • Mathematics
contestada

Help! Please and thank you!​

Help Please and thank you class=

Respuesta :

UserX UserX
  • 15-03-2019

a) value of x:

ZX =(10x+9)°

122°=( 10x+9)

122 - 9= 10x

113= 10x

x = 113/10= 11.3 °

so answer is = 11.3°

b) measure of Arc XZ :

formula to find Arc= © angle÷360 x 2πr

A = 122÷360 x 2πr

A = 61/180x 2πr

A = 0.3388x2πr

A= 0.6776πr

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fancyyander fancyyander
  • 15-03-2019

Answer: a.11.3° b.i have no idea

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