3 years ago

Please help me! Will give brainlst :)

Mathematics

2 answers:

zepelin [54]3 years ago

7 0

Answer:

angle DEG=47+30(sum of two interior opposite angle is equal to the exterior angle formed)

DEG=77 degree

DEF+47+30=180(being sum of interior angle of a triangle)

DEF+77=180

DEF=180-77

DEF=103 degree

measure of each angle is 60 degree

Step-by-step explanation:

sergey [27]3 years ago

4 0

Answer:

9. 103

10. 77

11. 60

Step-by-step explanation:

remember a triangle and supplementary angles equal 180 degrees

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