Tell whether the triangle is a right triangle

Mathematics

2 answers:

Oksana_A [137]3 years ago

7 0

Step-by-step explanation:

if you can draw a square in any of the corners then it would be considered a right angle

jolli1 [7]3 years ago

6 0

I do not know if there is a photo for your question but here is a very easy way to tell if a triangle is a right triangle!

A right triangle will always have a<u> 90 degree angle</u> and<u> two acute angles.</u> A 90 degree angle is a angle like the <u>corner</u> of a book or table. An acute angle is anything <u>smaller</u> than a 90 degree angle.

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kirza4 [7]

Answer:

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2 years ago

Factor by grouping x^3-4x^2+7x-28

Komok [63]

Answer:

(x - 4)(x^2 + 7)

Step-by-step explanation:

x^2 is a factor of the first two terms: x^3 - 4x^2 = x^2(x - 4).

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3 years ago

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LenaWriter [7]

Answer:

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Step-by-step explanation:

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2 years ago

How much cardboard is needed to make the tissue box above? Square inches 8 3 3

Katen [24]

The amount of cardboard needed to make a cuboid box of dimensions 8 inch, 3 inches and 3 inches is 114 sq. inches.

<h3>What is the surface area of cuboid?</h3>

Let the three dimensions(height, length, width) be x, y,z units respectively.

The surface area of the cuboid is given by

$S = 2(a\times b + b\times c + c\times a)$

For this case, tissue box is almost cuboid shaped.

Also, its dimensions are given being 8 inches, 3 inches and 3 inches.

Suppose we measure the amount of cardboard needed in terms of area, then, the amount of cardboard needed to make that box(without any whole, full cuboid) is equal to the area of its surface(either outer or inner if we assume 0 inches thickness of cardboard),

Thus, we get:

Amount of cardboard needed = surface area of cuboid box with dimensions 8 by 3 by 3 (in inches)

= $2(8 \times 3 + 3 \times 3 + 3 \times 8) = 114 \: \rm in^2$