3 years ago

Please answer #7 <3 tysm if u can explain why i’ll give u brainlist

Mathematics

2 answers:

rjkz [21]3 years ago

4 0

Answer:

Bc = 2

Step-by-step explanation:

Just add AB + CD

you'll get 19

substract it from AD

21 - 19 = 2

In Above question b = 39°

Not 31

ElenaW [278]3 years ago

3 0

Answer:

BC=2

Step-by-step explanation:

The equation is

AB+BC+CD=21

7+BC+12=21

19+BC=21

BC=21-19

BC=2

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