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deff fn [24]
3 years ago
6

If the area of a rectangle is 320 square feet and the width is 20 feet, what is the length of the rectangle?

Mathematics
2 answers:
strojnjashka [21]3 years ago
7 0

Answer:

length = 16 feet

Step-by-step explanation:

Given,

area = 320 sq. feet

breadth/width = 20 feet

let the length be x.

now

area = l × b

now the equation is,

20x = 320

x = 320/20

x = 16

hence, the length of the rectangle is 16 feet

hope this answer helps you dear...take care!

Juli2301 [7.4K]3 years ago
3 0

the length is  l=16ft.

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If a 12 sided regular polygon rotates about its center at which angle of rotation will the image of the polygon coinside with th
Amanda [17]

Answer: 30 degrees

This is the minimum amount of rotation.

Why this value? Well because 360/12 = 30

Consider a triangle with 3 sides. Specifically I mean an equilateral triangle. We can rotate it 120 degrees to have it line up with itself. Now notice that 360/3 = 120.

For a square, we can rotate it 90 degrees and we can say 360/4 = 90

So the general rule is that the minimum angle of rotation is 360/n, where n is the number of sides. This rule only works for regular polygons. Regular polygons have the same side length and the same angle measure (the side and angle measure won't necessarily be equal).

So going back to this 12 sided dodecagon, we have n = 12 and 360/n = 360/12 = 30 as the minimum angle of rotation. Each 30 degree rotation will have the polygon match up perfectly with its old image. The preimage and image will be identical.

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3 years ago
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sveticcg [70]
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Triangle DNO has vertices at D(5, 8), N(– 3, 10), and O(– 3, 6). If vertex D is translated 4 units to the right, the best name f
prisoha [69]

Using distance between two points to find the lengths of the edges of the triangle, the correct option is:

b. Isosceles

The distance between two points, (x_1,y_1) and (x_2,y_2), is given by:

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Vertex D is translated 4 units to the right is (9,8).

The lengths of the edges are:

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DO = \sqrt{(9 - (-3))^2 + (8 - 6)^2} = \sqrt{12^2 + 2^2} = \sqrt{148}

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You can learn more about distance between two points at brainly.com/question/18345417

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We set it equal to zero and solve the equation for x.

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