Rectangle qrst has coordinates q ( − 3 , 7 ) , r ( − 3 , 11 ) , s ( 4 , 11 ) , and t ( 4 , 7 ) . dilate the rectangle by a scale factor of 3 with a center of dilation at the origin. what are the coordinates of rectangle q 'r 's 't '? explain your reasoning. q ' ( , ) r ' ( , ) s ' ( , ) t ' ( , ) is the dilation a reduction or an enlargement? explain your reasoning.

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Because the scale factor is at the origin, you multiply all the coordinates by the scale factor:

Q(-3,7) = Q'(-3*3, 7*3) = Q'(-9,21)

R(-3,11) = R(-3*3, 11*3) = R'(-9,33)

S(4,11) = S'(4*3,11*3) = R'(12,33)

T(4,7) = T'(4*3, 7*3) = T'(12,21)

Q'(-9,21), R'(-9,33), S'(12,33) and T'(12,21)

It is enlargement.

Step-by-step explanation:

Given : Rectangle QRST has coordinates Q (− 3 , 7 ) , R (− 3 , 11 ) , S ( 4 , 11 ) , and T ( 4 , 7 ) .

Scale factor =3 >1 , so it is an enlargement.  [Figure enlarge using scale factor greater than 1 ]

The rule we use for dilating a figure using center of dilation at the origin and scale factor k:

Then, the coordinates of rectangle Q 'R 'S 'T ' will be :-

Hence, the coordinates of rectangle Q 'R 'S 'T ' are : Q'(-9,21), R'(-9,33), S'(12,33) and T'(12,21)

the correct answer is semicircle

step-by-step explanation:

the answer is semicircle because the shorter arc joining two points on the circumference of a circle is known as the minor arc, the larger arc is called the major arc, and a semicircle is a half circle, formed by cutting a whole circle along a diameter line.

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step-by-step explanation: