3 years ago

Triangle PQR has its vertices at the following coordinates:

Mathematics

1 answer:

velikii [3]3 years ago

7 0

Answer:

P'(4, 5) Q'(5, 3) R'(1, 1)

Step-by-step explanation:

When rotating a point 90 degrees counterclockwise about the origin our point T(x,y) becomes T'(-y,x).

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A rectangular plot of ground is 30 meters longer than it is wide. its area is 10,000 square meters.

dimulka [17.4K]

A = W· L
10,000 = W ( W +30 ) = W² + 30 W
W² + 30 W - 10,000 = 0
W = $\frac{-30+ \sqrt{900+40000} }{2}= \frac{-30+202.24}{2} = 86.12$
L = 86.12 + 30 = 116.12
Width of a plot is 86.12 m and lenght is 116.12 m.
Check : A = 116.12 · 86.12 ≈ 10,000

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Not Proportional. Sorry if it’s wrong

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Step-by-step explanation:

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Answer:

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