You can focus on the two sub-triangles ABC and ACD
We know that they are both right triangles, because we're given that AC and BD are perpendicular.
The sides AB and AD are the hypothenuses of these triangles, so we know their length through the pythagorean theorem:
But since we're given 
, the expressions for AD and AB are actually the same expression. This proves that AD=AB, and thus that the triangle is isosceles.
An example of the theme of movement that relates to the city of San Francisco is the emigration of people to other parts of the country.
<h3>What is a theme?</h3>
It should be noted that a theme simply means the underlying message that's conveyed based on the information given in a story.
It should be noted that the theme of movement examines geographical exploration.
Here, an example of the theme of movement that relates to the city of San Francisco is the emigration of people to other parts of the country.
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Answer:
1. 52 degrees 2. D
Step-by-step explanation:
1. The interior angles of a triangle add up to 180, so you can do 180 - 36 - 92 to find the third angle.
180 - 36 - 92 = 52 degrees
2. the angle XYZ has to equal the sum of the angles WXY and XWY. This means that 115 = 45 + XWY
115 - 45 = 72
XWY = D. 70 degrees
Answer:
x=25 degrees
Step-by-step explanation:
x= 90 degrees - given(65 degrees)
x=90-65
x=25 degrees.
The angles add up to 90 degrees.
The statements that apply to the algebraic expression are
- Replace “a number” with the variable, n.
- The two operations are multiplication and subtraction.
- The constants are 2 and 6.
- The expression is written as 2(n – 6)
<h3 /><h3>How to determine the algebraic expression?</h3>
The complete question is added as an attachment
The statement is given as:
Twice the difference of a number and six
Represent the number with n.
So, the statement becomes
Twice the difference of a n and six
Twice means 2 *
So, we have
2 * difference of a n and six
Express difference as minus i.e. -
So, we have
2 * (n - 6)
Hence, the expression is written as 2(n - 6)
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