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griffinalexis2780
27.07.2021 •
Mathematics
What is the value of y?
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Ответ:
C, 40 degrees
Step-by-step explanation:
All the angles of a triangle add to 180 degrees according to the Triangle Sum Theorem.
Since all angles sum to 180, we can set all the values to add to 180.
We have:
Combining like terms, we have:
Subtracting 60 from both sides gets us
Dividing by 3 from both sides equals
Ответ:
The area of the resulting figure is
times smaller than the area of the original figure
Step-by-step explanation:
we know that
If two figures are similar, then the ratio of its areas is equal to the scale factor squared
I assume that the figure is a rectangle or a triangle
Let
z------> the scale factor
x-----> the area of the resulting figure
y----> the area of the original figure
so
we have
substitute
therefore
The area of the resulting figure is
times smaller than the area of the original figure