Why do the angles in a triangle add up to 180 degrees?

Mathematics

2 answers:

Elena L [17]3 years ago

8 0

Answer:

Let N equal the number of angles in the polygon

Use the formula:

(N x 180)-360 = the sum of all the angles in the polygon

A triangle has 3 angles so:

(3 x 180)-360=180 degrees

(this formula works for any polygon, regardless of the number of it's angles)

LenKa [72]3 years ago

3 0

Answer:

Angles in a triangle add up to 180 degrees because triangles are have the measure and sizes of quadrilaterals, which have an angle measure of 360 degrees. If you divide 360 degrees by 2, you will get 180 degrees.

Step-by-step explanation:

Hope that helps!

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4 years ago

8.) cos D A B C D 6 8

vagabundo [1.1K]

Using Pythagorean theorem, we can find that DG is 10.(I don't think I need to explain this)

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Hope this helped!

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3 years ago

Safe wheelchair ramp specifications require about 4.75° maximum angle to be constructed with the ground. At a particular buildin

NeTakaya

Answer:

The ramp must cover a horizontal distance of approximately 19.081 feet.

Step-by-step explanation:

Given the vertical distance ( $y$ ), measured in feet, and the angle of the wheelchair ramp ( $\theta$ ), measured in sexagesimal degrees. The horizontal distance needed for the ramp ( $x$ ), measured in feet, is estimated by the following trigonometrical expression: