Question

the angles of a triangle is in the ratio of 3: 4: 5 find the measure of each angle

Answer 1

Answer:

Sum of angles of triangle= 180

So according to angle sum property

Let the angles be x

3x+4x+5x=180

12x=180

x=180/12

x=15

3x=3*15=45

4x=4*15=60

5x=5*15=75...

Hope its help yu!!

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Answer 2

$\huge\red{\boxed{\bold{Answer}}}$

We know that sum of all angles of a triangle = 180°

so, according to question

3x + 4x + 5x = 180°

12x = 180°

x = $\</strong><strong>l</strong><strong>a</strong><strong>r</strong><strong>g</strong><strong>e</strong><strong>\frac{1</strong><strong>8</strong><strong>0</strong><strong>}{</strong><strong>1</strong><strong>2</strong><strong>}$

x = 15

So,

1st angle = 3 × 15 = 45°

2nd angle = 4 × 15 = 60°

3rd angle = 5 × 15 = 75°

Therefore

45° + 60° + 75° = 180°

180° = 180°

$\large\green{\boxed{\bold{LHS=RHS}}}$

$\huge\mathbb\blue{THANK\:YUH!}$