Question

40° + x + x + 80° + 60° = 540°

solve it with proper solution​

Answer 1

Answer:

• 180° is the required value of x

Step-by-step explanation:

According to the Question

40° + x + x + 80° + 60° = 540°

→ 40° + 2x + 80° + 60° = 540°

→ 2x + 40° + 140° = 540°

→ 2x + 180° = 540°

→ 2x = 540° -180°

→ 2x = 360°

→ x = 360°/2

→ x = 180°

• Hence, the value of x is 180° (each)

Additional Information !!

Some More identities!!

• (a + b)² = a² + b² +2ab

• ( a - b )² = a² + b² -2ab

• ( a² - b² ) = ( a - b ) ( a + b )

• ( a +b +c)² = (a² + b² + c²) + 2(ab + bc +ca)

• (a + b)³ = a³ + b³ + 3ab(a+b)

• (a-b)³ = a³ - b³ -3ab(a-b)

• ( a³ + b³) = (a+b) (a²-ab +b²)

• (a³ - b³) = (a -b) (a² + ab + b²)

Answer 2

Answer:

x=180°

Step-by-step explanation:

40°+x+x+80°+60°=540°

180°+2x=540°

2x=540°-180°

2x=360°

x=360/2

x=180°

Hope this will help