2 years ago

Classify each triangle by its angles and by the measure of its sides.

Mathematics

1 answer:

pochemuha2 years ago

7 0

Answer:

1. Equilateral

2. Right triangle

3.Obtuse, isosceles

Step-by-step explanation:

hope this helps!

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Find the area of the regular decagon if the apothem is 2.8ft and a side is 1.8ft

geniusboy [140]

DECA=10, decagon = 10 sides.

since each side is 1.8 long, all 10 sides will be 10*1.8 or 18 units long, so that'd be the perimeter then,

$\bf \textit{area of a regular polygon}\\\\
A=\cfrac{1}{2}ap~~
\begin{cases}
a=apothem\\
p=perimeter\\
------\\
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3 years ago

A projector displays an image on a wall. the area(in square feet) of the rectangular projection can be represented by

andrew-mc [135]

Answer:

The height of the projection will be (x - 5) feet.

Step-by-step explanation:

A projector displays an image on a wall. The area (in square feet) of the rectangular projection can be represented by (x² - 8x + 15).

Now to get the width and the height of the rectangular projection we have to factorize the expression (x² - 8x + 15).

Here, (x² - 8x + 15)

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Now, if the height of the projection is less than its width then, the height of the projection will be (x - 5) feet. (Answer)

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Answer:

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Hope this helps!

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