Question

pleaseee helppp mere
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Answer 1

(3n - 47) + (n + 7) = 180°

3n - 47 + n + 7 = 180

4n - 40 = 180

4n = 180 + 40

4n = 220

n = 220/4

n = 55.

angle ABC = 3n-47

=> 3(55) - 47

=> 165 - 47

=> 118°

Answer 2

Step-by-step explanation:

(3n-47) + (n+7) = 180

3n+n-47+7=180

4n-40=180

4n=180+40

4n=220

n=220/4

n=55

angle ABC= 3n-47= 3x55-47= 118

angle DCB= n+7= 55+7 = 62