Is this a polygon or trapezoid?

Mathematics

2 answers:

atroni [7]2 years ago

8 0

Answer:

Step-by-step explanation:

this is my opinion so No

Kryger [21]2 years ago

5 0

No a trapezoid has 2 parallel lines

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Three picture frames were measured in inches and the results are shown below, without rounding. Determine which picture frame ha

marysya [2.9K]

Answer:

In the case of the second frame, the sides are not perpendicular to each other.

Step-by-step explanation:

A. The length (l) of the frame is 20 and width (w) is 15.

If the frame is a rectangular one, then diagonal (d) can be calculated from the Pythagoras Theorem as $d^{2} = l^{2} + w^{2} = 20^{2} + 15^{2} = 625 = 25^{2}$

⇒ d = 25 (Also given)

So, the frame is rectangular one.

B. The length (l) of the frame is 22 and width (w) is 10.

If the frame is a rectangular one, then diagonal (d) can be calculated from the Pythagoras Theorem as $d^{2} = l^{2} + w^{2} = 22^{2} + 10^{2} = 584$

⇒ d = 24.166 ≠ 24 (24 is the given value)

So, the frame is not a rectangular one.

C. The length (l) of the frame is 21 and width (w) is 20.

If the frame is a rectangular one, then diagonal (d) can be calculated from the Pythagoras Theorem as $d^{2} = l^{2} + w^{2} = 21^{2} + 20^{2} = 841 = 29^{2}$

⇒ d = 29 (Also given)

So, the frame is rectangular one.

Therefore, in the case of the second frame, the sides are not perpendicular to each other. (Answer)

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2 years ago

Which graph is an example of direct variation?

Svet_ta [14]

Answer:

negative 2 is the answer

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2 years ago

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In an arithmetic sequence, a_17 = -40 and a_28 = -73. Please explain how to use this information to write a recursive formula fo

Vinvika [58]

An arithmetic sequence

$a_1,a_2,a_3,\ldots,a_n,\ldots$

is one in which consecutive terms of the sequence differ by a fixed number, call it d. This means that, given the first term $a_1$ , we can build the sequence by simply adding d :