sommer6222
sommer6222 sommer6222
  • 18-11-2021
  • Mathematics
contestada

what is number 11. solve for x

what is number 11 solve for x class=

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prasamsharayamajhi
prasamsharayamajhi prasamsharayamajhi
  • 18-11-2021

Answer:

78° +78°+3x-12= 180 {being isosceles triangle and sum of 3angles of a triangle is 180°}

156+ 3x-12=180

144+3x=180

3x=180-144.

3x=36

[tex]x = \frac{36}{3} [/tex]

x=12

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