20) Which rule yields the dilation of the figure RSTU centered at the origin?
2 answers:
Answer: A)
Step-by-step explanation:
The rule of dilating a shape by scale factor k centered at the origin is given by :-
[We multiply k to the coordinates of pre-image ]
It means Option C) and D) is incorrect.
From the given graph , it can be observe that quadrilateral R'S'T'U' (image) is larger than the RSTU (pre-image) .
It means the scale factor should be greater than 1. [∵ Scale factor for enlargement is k>1]
Then, Option B is also incorrect.
Hence, the rule yields the dilation of the figure RSTU centered at the origin is given by option A)
i.e.
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Answer:
Measure of angle V = 62.4°.
Step-by-step explanation:
Given information : In ΔUVW, m∠W=90°, UV = 4.1 feet, and VW = 1.9 feet.
We need to find the measure of ∠V to the nearest tenth of a degree.
In a right angled triangle
Since m∠W=90°, so ΔUVW is a right angle triangle.
Taking cos inverse on both sides.
Therefore, the measure of angle V is 62.4°.
