junesummerhue junesummerhue

20-06-2022
Mathematics

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i need help with this question (answer choices 15, 5, and 12)

i need help with this question answer choices 15 5 and 12 class=

Respuesta :

jimrgrant1 jimrgrant1

20-06-2022

Answer:

x = 15

Step-by-step explanation:

the opposite angles of a cyclic quadrilateral sum to 180° , then

6x + 20 + 3x + 25 = 180 , that is

9x + 45 = 180 ( subtract 45 from both sides )

9x = 135 ( divide both sides by 9 )

x = 15

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