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The angles of a triangle are in the ratio of 2:3:4. What is the degree

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The angles of a triangle are in the ratio of 2:3:4. What is the degree  [#permalink]

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New post 11 Aug 2019, 05:44
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A
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C
D
E

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92% (00:25) correct 8% (00:28) wrong based on 26 sessions

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Re: The angles of a triangle are in the ratio of 2:3:4. What is the degree  [#permalink]

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New post 11 Aug 2019, 07:40
Bunuel wrote:
The angles of a triangle are in the ratio of 2:3:4. What is the degree measure of the smallest angle?

(A) 20
(B) 30
(C) 40
(D) 45
(E) 60


Given: The angles of a triangle are in the ratio of 2:3:4.

Asked: What is the degree measure of the smallest angle?

Let the angles be 2x, 3x & 4x.

2x+3x+4x = 9x = 180
x=20

Smallest angle = 2x = 2*20 =40

IMO C
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Re: The angles of a triangle are in the ratio of 2:3:4. What is the degree  [#permalink]

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New post 11 Aug 2019, 07:47
The angles of a triangle are in the ratio of 2:3:4. What is the degree measure of the smallest angle?

(A) 20
(B) 30
(C) 40
(D) 45
(E) 60

Let the three angles be 2x,3x,4x .The sum of three angles is 2x+3x+4X=180.9x=180,x=20.So smallest angle is 2x=40.therefore correct choice is "C"
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Re: The angles of a triangle are in the ratio of 2:3:4. What is the degree  [#permalink]

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New post 11 Aug 2019, 08:10
The angles are in a ratio of 2:3:4, implying the smallest correspond to 2.
Smallest angle =(2/(2+3+4))*180
=(2*180)/9 = 40.

Answer is therefore C.

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Re: The angles of a triangle are in the ratio of 2:3:4. What is the degree  [#permalink]

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New post 11 Aug 2019, 10:41
Bunuel wrote:
The angles of a triangle are in the ratio of 2:3:4. What is the degree measure of the smallest angle?

(A) 20
(B) 30
(C) 40
(D) 45
(E) 60


given 9x=180 ; x=20
so smallest angle ; 40
IMO C
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The angles of a triangle are in the ratio of 2:3:4. What is the degree  [#permalink]

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New post 11 Aug 2019, 11:07
Bunuel wrote:
The angles of a triangle are in the ratio of 2:3:4. What is the degree measure of the smallest angle?

(A) 20
(B) 30
(C) 40
(D) 45
(E) 60

\(\frac{2}{(2+3+4)}*180 = 40\), Answer must be (C)
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Re: The angles of a triangle are in the ratio of 2:3:4. What is the degree  [#permalink]

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New post 11 Aug 2019, 12:38
Bunuel wrote:
The angles of a triangle are in the ratio of 2:3:4. What is the degree measure of the smallest angle?

(A) 20
(B) 30
(C) 40
(D) 45
(E) 60


9x=180. x=20. Smallest angle is 2x which is 40.
IMO C
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Re: The angles of a triangle are in the ratio of 2:3:4. What is the degree  [#permalink]

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New post 14 Aug 2019, 17:45
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Bunuel wrote:
The angles of a triangle are in the ratio of 2:3:4. What is the degree measure of the smallest angle?

(A) 20
(B) 30
(C) 40
(D) 45
(E) 60



We can create the equation:

2x + 3x + 4x = 180

9x = 180

x = 20

Thus, the smallest angle is 2(20) = 40 degrees.

Answer: C
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Re: The angles of a triangle are in the ratio of 2:3:4. What is the degree   [#permalink] 14 Aug 2019, 17:45
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