Respuesta :

sreedevi102

Answer:

x = 32

m ∠ BEC = 43°

Step-by-step explanation:

(3x + 41 )° = 137°                    [ vertically opposite angle ]

3x + 41 = 137

3x = 137 - 41

3x = 96

x = 32

137° + m∠BEC = 180°       [ Straight line angle ]

m ∠BEC = 180 - 137

m ∠ BEC = 43°

wangeddie9

Answer:

Answer in explanation

Step-by-step explanation:

We know that 137 and (3x+41) are vertical angles eaning mthey are equilvalent.

Therefore we can write the eqaution 137= 3x+41 and solve for x.

137-41=3x

96=3x

32=x

We know that BEA and BEC are supplemntry meaning they form a 180 degree angle. And BEA is 137. we know that BEC is 180-137 which is

43

Hoped this helped,

JoeLouis2

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