The triangle is drawn and is shown in the image attached with.
We get two similar triangles. Triangle ABC and Triangle ADE. Since the triangles are similar the ratio of their corresponding sides will be the same.
D and E are the midpoints of AB and BC, therefore, AD and AE are both 4 units in length. Using the property of similar triangles, we can say:
AD : DE= AB : BC
AD = 4 units
AB = 8 units
BC = 6 units
DE = unknown = x units
So,
Therefore,
the length of DE will be 3 units
Answer:
A. The red cylinder
Step-by-step explanation:
<h2><u>Which cylinder has the greater volume </u></h2><h3><u>volume of a cylinder</u></h3>
formula:
V =
<h3><u>volume of the blue cylinder</u></h3>
V =
=
=18.84956
to 2 dp
volume of the blue cylinder is <u>18.85 </u>
<h3><u>volume of the red cylinder</u></h3>
V =
=
= 37.69911
to 2dp
volume of the red cylinder is 37.70
<h3><u>the cylinder which has the greater volume is : A. The red cylinder</u></h3>
Answer:
The correct answer is option 'D': Standard error of the mean.
Step-by-step explanation:
If we carry out observations that are random in nature the mean of the data is the average value which gives us an idea about the value about which the data is spread about.
The standard deviation gives us the distribution of the data around the mean thus data with a low standard deviation means that the data point's are closer to mean. A larger value of standard deviation means that the data is highly discrete or we can say that the variations in the data points is large.
the concept of standard deviation is highly useful while carrying out results of measured observations as it gives us a estimate of the standard error of the mean.