Question

The measure of two angles of a triangle is in the ratio 4:5

Answer 1

Answer:

40° , 50° & 90°

Step-by-step explanation:

Let the two angles of the triangle be 4x and 5x.

Then, as per the question, we know

third angle =4x+5x=9x

We know that sum of all the angles of a triangle is 180

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.

∴4x+5x+9x=180

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⇒18x=180

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⇒x=10

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....[On dividing both sides by 18]

So, first angle = 4x

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= 4×10

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=40

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,

second angle = 5x

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= 5×10

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=50

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and

and third angle = 9x

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= 9×10

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=90

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