aletadaboss aletadaboss

03-03-2019
Mathematics

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Find y of this shape.

Find y of this shape class=

Respuesta :

jimrgrant1 jimrgrant1

03-03-2019

Answer:

y = 75

Step-by-step explanation:

The sum of the angles in a quadrilateral = 360°

∠DGF and 80° form a straight angle and are supplementary, hence

∠DGF = 180° - 80° = 100°

Subtract the sum of the 3 angles from 360 for the value of y

y = 360 - (65 + 120 + 100) = 360 - 285 = 75

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