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Sagot :
Answer:
x + 90 = 120
Step-by-step explanation:
the marked angles are vertically opposite angles and are congruent , then
4x = x + 90 ( subtract x from both sides )
3x = 90 ( divide both sides by 3 )
x = 30
then
x + 90 = 30 + 90 = 120
Answer:
x + 90 = 120 degrees.
Step-by-step explanation:
4x = x + 90 (opposite angles are equal)
3x = 90
x = 30
So the 2 angles are
4 * 30 = 120.
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