A rectangle was rotated 270° about the origin. The image is shown. Which points are vertices of the pre-image? Check all that ap
ply. K(–3, –1) M(–3, 2) M(3, 2) N(–3, 1) N(3, 1)
2 answers:
Answer:
M(3, 2) and N(3, 1)
Step-by-step explanation:
A rectangle was rotated 270° about the origin.
Since it doesn't mention which direction, we will review both clockwise and anti-clockwise rotation.
See attached where top rectangle represents the pre-image before anti-clockwise and bottom one - before clockwise rotation.
<u>Now let's check the points given:</u>
K(–3, –1)
- No
M(–3, 2)
- No
M(3, 2)
- Yes, top one
N(–3, 1)
- No
N(3, 1)
- Yes, top one
So based on correct points of pre-image we can state it was rotation anti-clockwise
You might be interested in
Answer:
90 of blue paint
Step-by-step explanation:
From the given diagram, the sides have the same dimensions and the shape of a triangle.
Area of a triangle = x base x height
Given that, the base of each side = 6 cm, and the height = 10 cm.
Then,
Area of each side of the shape = x 6 x 10
= 30
Since Leonard wish to paint only the 3 sides and not the bottom part of the shape, the amount of paint required can be determined as;
3 x area of each side = 3 x 30
= 90
Leonard would need 90 of paint to paint the sides of the shape.