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Pachacha [2.7K]
3 years ago
14

Find the measures of the angles of the triangle ABC if measure of angle A:measure of angle B:measure of angle C = 2:3:4.

Mathematics
1 answer:
Nezavi [6.7K]3 years ago
8 0

Answer:

Angle A = 40

Angle B = 60

Angle C = 80

Step-by-step explanation:

The three angles of a triangle are in the ratio

2:3:4

Multiply by x

2x:3x:4x

The sum of the angles is 180 degrees

2x+3x+4x = 180

9x = 180

Divide by 9

9x/9 = 180/9

x = 20

The value of x is 20

A         B       C    

2*20:3*20:4*20

40       60    80

Angle A = 40

Angle B = 60

Angle C = 80

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otez555 [7]

The equation you need to find x is,

12x^{\circ}+30^{\circ}=90.

Then solving for x gives you x=5.

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7 0
3 years ago
.<br><br> y = x2 + 3<br> y = x + 5
ddd [48]
I assume you mean x squared in the first equation

Because both are equal to y, they are equal to each other so x + 5 = x^2 +3
If we then move everything over to one side, we get x^2 - x - 2 = 0

Then factorise it to (x-2)(x+1) = 0
And solve both parts separately

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Sub both values into the simplest equation in this case y=x+5
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1 year ago
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evablogger [386]

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Step-by-step explanation:

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3 0
3 years ago
Solve.<br><br> 8w - 17 = 23<br><br> W=
kramer

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Step-by-step explanation:

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3 0
3 years ago
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Answer:

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