If a 90 degree angle is a right angle, how does 360 degrees make a circle? Not for school,just for thought.

Mathematics

2 answers:

kotykmax [81]3 years ago

8 0

180 is a flat line and if you turn it’s not exactly a circle it seems that way but it just rotating

Hoochie [10]3 years ago

5 0

Answer:

See below

Step-by-step explanation:

90° = 1 rt ∠ = ¼ circle

360° = 4 rt ∠ = ⁴/₄ circle = 1 circle

360° = 1 circle

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Whats an equation that make x=31 ? like in other words give me an equation where it leads down to 31

MrRa [10]

Sure, that's easy! Here's one

5x + 7 = 162

If I wanted to solve this equation, I would break it down. I'd subtract the result (162) by 7

162 - 7 = 155.

From there I just divide that by 5!

155 / 5 = 31

There it is! Ultimate proof that x is in fact 31!

5 0

3 years ago

Read 2 more answers

Volume of a cone = r²h,

inessss [21]

Answer:

7.5 m 457.5 $\pi$ $m^{2}$

Step-by-step explanation:

First, visualize the original cone and the smaller cone as overlapping similar triangles. The scale factor of the original cone to the smaller cone is 50:40, so if the smaller cone has a radius of 6 m, then the radius of the original cone would be 7.5 m.

The volume of the frustum is the volume of the original cone minus the volume of the smaller cone. The formula for the volume of a cone is V = $\frac{1}{3} \pi r^{2}h$ .