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Alja [10]
3 years ago
15

{6}{25} = \frac{d}{30} " alt=" \frac{6}{25} = \frac{d}{30} " align="absmiddle" class="latex-formula">
what is the value of d

​
Mathematics
1 answer:
GarryVolchara [31]3 years ago
5 0

Answer:

For \frac{6}{25}   = \frac{d}{30} , d = 7.2

Step-by-step explanation:

Here, the given expression is \frac{6}{25}   = \frac{d}{30}

To find the value of the variable d :

\frac{6}{25}   = \frac{d}{30}  \implies d = \frac{6}{25} \times 30

or, d = \frac{180}{25}  = \frac{36}{5 }   = 7.2

Hence, for \frac{6}{25}   = \frac{d}{30} , d = 7.2

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Experimentally verify sum of three angles of an triangle is 180⁰.​
svetlana [45]

Draw line a through points A and B. Draw line b through point C and parallel to line a.

Since lines a and b are parallel, <)BAC = <)B'CA and <)ABC = <)BCA'.

It is obvious that <)B'CA + <)ACB + <)BCA' = 180 degrees.

Thus <)ABC + <)BCA + <)CAB = 180 degrees.

Lemma

If ABCD is a quadrilateral and <)CAB = <)DCA then AB and DC are parallel.

Proof

Assume to the contrary that AB and DC are not parallel.

Draw a line trough A and B and draw a line trough D and C.

These lines are not parallel so they cross at one point. Call this point E.

Notice that <)AEC is greater than 0.

Since <)CAB = <)DCA, <)CAE + <)ACE = 180 degrees.

Hence <)AEC + <)CAE + <)ACE is greater than 180 degrees.

Contradiction. This completes the proof.

Definition

Two Triangles ABC and A'B'C' are congruent if and only if

|AB| = |A'B'|, |AC| = |A'C'|, |BC| = |B'C'| and,

<)ABC = <)A'B'C', <)BCA = <)B'C'A', <)CAB = <)C'A'B'.

4 0
2 years ago
How many $1 dollar bills do i need to circle the earth? Thanks
ozzi
1 billion dollars × 6 inches per dollar = 6 billion inches / 63,360 inches per mile = 94,636.97 miles coverted by1 billion bills. answer = 94,636.97 miles 
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3 years ago
What is 12.38 expanded in form
Lana71 [14]
12.38 in expanded form is write like:-

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So, 12.38 written in expanded form is:- 10 + 2 + .3 + 0.8

Hope i helped
3 0
3 years ago
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Natalia is making a pizza. The radius of the pizza is 25 inches. What is
aniked [119]

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Please note the square root of 25 was taken, as well as the square root of cm2.

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Perimeter=20 cm

Step:

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8 0
3 years ago
Which construction is illustrated above ?
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Answer:

Option 2.

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