Can someone help me on this. I'm stuck on most of these problems.
1 answer:
Hence, Option B: 105 is the correct answer
Further explanation:
We can see that when a traversal intersects two parallel lines alternate angles and corresponding angles are form.
In the given diagram,
7x and 5x+30 are alternate interior angles
while
y and 7x are corresponding angles.
When a traversal intersects two parallel lines, the alternate interior angles and the corresponding angles are equal.
So,
As we know thaty=7x
so y=105°
Hence, Option B: 105° is the correct answer
Keywords: Parallel lines, Alternate angles, Corresponding angles
Learn more about parallel lines at:
#learnwithBrainly
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Answer:
A
Step-by-step explanation:
Using Pythagoras' identity in the right triangle.
The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is
BC² = 9² + 12² = 81 + 144 = 225 ( take the square root of both sides )
BC = = 15 → A