Find the value of x. please give full answer.

1.	Find the value of x. please give full answer.
Answer» FIRST let's UNDERSTAND the concept. → Sum of all angles in any triangle is always 180° → This is known as Angle Sum Property. Applying Angle Sum Property, 7x + 5X + 60° = 180° ⇒ 12x + 60° = 180° ⇒ 12x = 180° - 60° ⇒ 12x = 120° ⇒ x = 120 ÷ 12 ∴ x = 10° Know More: If we need to FIND to find the angles, 7x = 7(10) = 70° 5x = 5(10) = 50° Verification: 7x + 5x + 60° = 180° → 70° + 50° + 60° = 180° → 180° = 180° LHS = RHS ★ Hence Verified ★

Answer»

FIRST let's UNDERSTAND the concept.

→ Sum of all angles in any triangle is always 180°

→ This is known as Angle Sum Property.

Applying Angle Sum Property,

7x + 5X + 60° = 180°

⇒ 12x + 60° = 180°

⇒ 12x = 180° - 60°

⇒ 12x = 120°

⇒ x = 120 ÷ 12

If we need to FIND to find the angles,

7x = 7(10) = 70°

5x = 5(10) = 50°

7x + 5x + 60° = 180°

→ 70° + 50° + 60° = 180°

→ 180° = 180°

LHS = RHS

★ Hence Verified ★

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