Someone help please!Whats the answer to this question!
1 answer:
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Answer:
Step-by-step explanation:
<u>Concept:</u>
Here, we need to know the concept of the distance formula.
The distance formula is the formula, which is used to find the distance between any two points.
If you are still confused, please refer to the attachment below for a clear version of the formula.
<u>Solve:</u>
Find the length of UV, where:
- U (1, -9)
- V (2, -1)
Hope this helps!! :)
Please let me know if you have any questions
Answer:
A
Step-by-step explanation:
The line from the vertex to the base is a perpendicular bisector and divides the isosceles triangle into 2 right triangles.
Using Pythagoras' identity in either of the 2 right triangles, then
( x )² + 3² = (
)²
x² + 9 = 45 ( subtract 9 from both sides )
x² = 36 ( multiply both sides by 4 to clear the fraction )
x² = 144 ( take the square root of both sides )
x = = 12 → A