Use fraction multiplication to show how you can find the measure of a right angle.
2 answers:
Explanation:
Draw a circle.
Find it's center.
From the center divide the circle into four equal parts, by drawing two diameters , such that angle between two diameter is a right angle.
As, circle is divided into four equal parts, and each part is equivalent to .
So, measure of each part in terms of angles in degrees can be found as
the reason is measure of complete circle is 360 degree.
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Answer: 8 (The second option).
Step-by-step explanation:
1. To solve this exercise you draw a line to a point O, this lines will bisect the angle of Z∠60°. Then will obtain two into two right triangles with two angles of 30° at the point Z.
2. The lenght XY will be twice the lengt XO or YO.
3. Let's calclate XO as following:
4. Then, XY is:
Let the total number of questions in the math test be defined by the variable x.
Now, we know that Parker correctly answered 35 questions. These 35 questions make 70% of the total number of questions on his math test.
The information we have above can be expressed as an equation given below:
70% of x=35
This can be rewritten as:
Thus, to find the total number of questions we will have to isolate x.
Therefore, there were a total of 50 questions in the math test.