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IRISSAK [1]
4 years ago
9

Given: < 1 and < 2 are right angles. Prove: < 1 = < 2

Mathematics
1 answer:
sashaice [31]4 years ago
5 0
Statement.
(1). ∠1 is right angle & ∠2 is right angle

(2). ∠1 = ∠2

Reason
(1). Given

(2). Euclid’s Fourth Postulate states that all right angles are equal to one another.

Warning
This is assuming, that we only include Euclidean geometers.
This is because Euclidean geometry only recognise angles between straight lines.

So we have Non-Euclidean geometry for things that are not straight but this raises a question what is a straight line?

A general definition is (A curve is "straight' if tangent vectors stay tangent when parallel-transported along that curve)

Want more info

http://www.physics.ucc.ie/apeer/PY4112/Curvature.pdf

(Elementary Geometry from an Advance Standpoint, by Edwin Moise).

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Plsssss help me with this angle circle problem what is x
kirza4 [7]

Answer:

x = 3

Step-by-step explanation:

Once again we want to use the relationship stated earlier

Where A * B = C * D

Once again imagine that the segments in the given problem have letters

A = x

B = 12

C = x + 1

D = 9

Now we create an equation using the relationship

12 * x = 9(x+1)

now we solve using basic algebra

step 1 distribute the 9 to the x and the 1

9 * x = 9x

9 * 1 = 9

now we have 12x = 9x + 9

step 2 subtract 9x from each side

12x - 9x = 3x

9x - 9x cancels out

now we have 3x = 9

step 3 divide each side by 3

3x/3=x

9/3=3

we're left with x = 3

4 0
3 years ago
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Write an equation to represent the relationship between red paint, r, and yellow paint, y, in each batch.​
Murljashka [212]

Answer:

not sure if that is the one I can answer

7 0
3 years ago
Can someone help me find the value of X
Anna007 [38]
X = 31.

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6 0
3 years ago
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Write an equivalent expression to show the relationship of multiplication and addition. 10 + 10 + 10
Blababa [14]

Answer:

3 * 10 is the correct answer to the given question .

Step-by-step explanation:

Equivalent expression are the same expressions although they can appear tiny bit differently.In the given question we have to express  10 + 10 + 10 in the multiplication form

Therefore

3\ * \ 10

i. e=30

Which is same as

10 + 10 + 10

=30

so

3 * 10 is the correct answer

5 0
3 years ago
George Costanza is standing on top of a lighthouse that is 210 feet high. He sees his friends Jerry and Kramer in a boat. The an
notsponge [240]

Answer:

412.15 ft to the nearest hundredth

Step-by-step explanation:

You have to use the tangent function since you are given one leg of a right triangle and you are looking for the other leg

Let x = the distance from boat to lighthouse

So, tan 27 = 210/x

x tan 27 = 210

x = 210/tan 27

x = 412.14820  = 412.15 ft to the nearest hundredth

8 0
3 years ago
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