Please can someone help?
1 answer:
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Answer:
Option B is correct
circumference of a circle is 785 m
Step-by-step explanation:
Circumference of the circle(C) is given by:
where
r is the radius of the circle
As per the statement:
radius of the circle is 125 m
then substitute in [1] we have
Simplify:
C = 785 m
Therefore, the circumference of a circle is 785 m
<h3><em>Answer:</em></h3>
<em>mean = 4</em>
<em>Median = 3</em>
<em>Mode = 1</em>
Step-by-step explanation:
first let’s arrange the numbers from least to highest:
1 , 1 , 1 , 2 , 3 , 3 , 5 , 5 , 15
=====================
The median is the number that’s comes in the middle of the data set ⇒ median = 3 ( the fifth number in the data set)
1 , 1 , 1 , 2 , <u>3</u>, 3 , 5 , 5 , 15
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The mode is the number that repeats the most ⇒ mode = 1 (repeated 3 times)
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Answer:
We know that there are four types of rigid transformations namely Dilation, Translation, Reflection and Rotation.
Now, Dilation is the transformation that changes the size of the figure by some scale factor i.e. it is the transformation that increases or decreases the size of the given figure.
We can see in the first figure that the triangle ABC is dilated ( increased by some scale factor ) to form A'B'C'.
Further, Translation is the transformation that slides the figure horizontally or vertically to a fixed distance.
The second figure shows the change of position of the solid ABCD to the position of A'B'C'D'.
Now, Reflection is the transformation that flips the image about a straight line.
During reflection, the size of the figure remains same but the it goes to the opposite side of the line.
We can see from the third figure the reflection of ABC about the y-axis to form A'B'C'.
Finally, Rotation is the transformation that turns the image about a fixed point called the center of rotation to a certain degree.
So, in the last figure, we see that the image A is rotated about the center of rotation by 120° to form A'.
Hence, we see that Dilation is different from the other transformations.
