Question

Help plss andddd thankkkksss for itttt

Answer 1

Answer:

According to exterior angle property,

angleC + angleD = angleDEF

Putting the values we get,

(2y+7)° + (7y+5)° = 111°

=> 9y + 12 = 111°

=> 9y = 111 - 12

=> 9y = 99

=> y = 99/9 = 11

Therefore angle C = 2y + 7 = 11x2 + 7 = 29°

And angle D = 7y + 5 = 7x11 + 5 = 77 + 5 = 82°

NOTE :- For proof you can add angle C and D. There sum will be equal to 111°

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