3 years ago

Can you please help with 19&23? 19 says write an expression to represent the perimeter. Thanks!

Mathematics

1 answer:

Valentin [98]3 years ago

7 0

the perimeter is simply the sum of all its sides.

(6a+8)+(12a)+(6a+8)+(10a-4)

34a + 16 - 4

34a + 12.

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Answer:

The answer is

<h2>10 units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

$d = \sqrt{ ({x_1 - x_2})^{2} + ({y_1 - y_2})^{2} } \\$

where

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From the question the points are

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The distance between them is

$d = \sqrt{ ({ - 2 + 8})^{2} + ({1 - 9})^{2} } \\ = \sqrt{ {6}^{2} + ({ - 8})^{2} } \\ = \sqrt{36 + 64} \: \: \: \: \: \: \: \\ = \sqrt{100} \\ = 10 \: \: \: \: \: \:$

We have the final answer as

<h3>10 units</h3>

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