pixiemads
pixiemads pixiemads
  • 17-09-2020
  • Mathematics
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Determine the value of x in the diagram below. Justify your reasoning.​

Determine the value of x in the diagram below Justify your reasoning class=

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bantawahenhse
bantawahenhse bantawahenhse
  • 17-09-2020

Answer:

the value of x is 70

Step-by-step explanation:

first in (part140)

let, the other angle be a

140°+a=180°(straight line)

a=40°

now,

in(part150)

let, the other angle be b

150°+b=180°(straight line)

b=30°

then,

a+b=x(sum of 2 opposite interior angle is equals the exterior angle)

40+30=x

70=x

so x is 70°

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