Question

Find the value of x
​

Answer 1

Answer:

120°

Step-by-step explanation:

angle ABC=180-60 =120

angel DCB= 180- 50=130

sum of all angles of a Pentagon is 540°

50+120+130+x+x=540

300+2x=540

2x=540-300

x= 240/2

x= 120°

Answer 2

Answer:

$∠abc = 180 - 60 = 120$

$∠dcb = 180 - 50 = 130$

$sum \: of \: all \: angles \\ \: of \: pentagon \: is \: 540°$

$50 + 120 + 130 + x + x = 540°$

$300 + 2x = 540°$

$2x = 540 - 300$

$x = 240 \div 2$

$x = 120°$

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