Question

Q21. The measure of angles of a
pentagon are x degree,(x+5) degree,
(x-5) degree, (x+10) degree and x
degree. Find value of x​

Answer 1

Answer:

106°

Step-by-step explanation:

Sum of angles of a pentagon = 540°

A/Q

x°+(x+5)°+(x-5)°+(x+10)°+x° = 540°

[x+x+5+x-5+x+10+x]° =540°

[x+x+x+x+x+5-5+10]° = 540 °

[5x+10]° = 540°

Taking 5 common

5(x+2)° = 540°

x+2 = 540/5

x+2 = 108°

x= 108-2

x= 106° .....