Question

write the answer pls as the following figure is given​

Answer 1

Answer:

3x + 4x + 5x = 180°

12x = 180°

x= 180°/12

x = 15

Step-by-step explanation:

3x = 15×3 (x = 15) = 45°

4x = 15×4 = 60°

5x = 15×5 = 75°

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Answer 2

${\large{\rm{\bold{\red{\underline{Question}}}}}}$

The angles of a triangle are in the ratio 3:4:5. Find the measures of all the angles of the triangles.

${\large{\rm{\bold{\red{\underline{Answer}}}}}}$

We know, sum of all angles in a triangle add up to 180°

Let the angles be 3x, 4x and 5x

➩ 3x + 4x + 5x = 180°

➩ 12x = 180°

➩ x = 180°/12

➩ x = 15

The angles are:

• 3x = 3 × 15 = 45
• 4x = 4 × 15 = 60
• 5x = 5 × 15 = 75

Therefore, the measures of the angles are 45°, 60° and 75°

hope it helps!