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Julli [10]
3 years ago
6

This unit focused, in part, on relationships in triangles. A triangle is the simplest type of polygon and is frequently used in

construction. Explain why triangles are often used to build bridges, roofs, buildings, and other structures. Which properties of a triangle make it a desirable geometric shape for these applications?
Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
7 0

Answer:

Triangles have been used extensively throughout history in construction due to their rigid shape and strength. Unlike a square, that can shift into a parallelogram when force is applied to one of its sides, an equilateral triangle's sides and angles are fixed.

Due to the rigidness of the triangle's shapes, high amounts of forces can be sustained without deformation. Triangles are often used as trusses in bridges, or other support structures in buildings. They can easily be fit together to provide strength and stability over a wide area. The most famous triangles in structures are the pyramids of Egypt, which are the largest pyramids in the world.

Step-by-step explanation:

Triangles are used in structures because a triangle is a very stable shape that cannot be stretched or squashed easily - unlike rectangles which can easily become parallelograms. It's angles are used to balance weight of any structure.

Contact [7]3 years ago
6 0

Answer:

Step-by-step explanation:

Because of their shape triangles  are stable and strong. Weight is evenly distributed  through a triangular structure when force is applied and the triangle retains its shape.

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eimsori [14]
13.984 rounded to the nearest tenth is 14

.984 is closer to 1 than to .9, so we have to round up.
7 0
3 years ago
Help me pls i want to pass my math class
luda_lava [24]

Answer:

D

Step-by-step explanation:

You know the slope has to be -5, because in the equation it says -5x. You know the y intercept has to be a number on the y axis, and since it says the y intercept is 4 in the equation, you would know its (0,4).

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3 years ago
What’s the simplified form of -3+7–3r–12
VashaNatasha [74]

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-3r-8

Step-by-step explanation:

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3 years ago
Find the area of the trapezoid 14.5 8 19.5​
Svetlanka [38]

Step-by-step explanation:

Which one is the height?¿

The formula is

b1+b2 divided by 2 times the height

That's the best I can do for you atm atleast.

8 0
3 years ago
A explanation would help very much
Leni [432]

Answer:

x = 14

y = 40

Step-by-step explanation:

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3 years ago
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