What is the value of b?

Mathematics

2 answers:

Tcecarenko [31]3 years ago

8 0

Answer:

angles in a triangle add up to 180

so 5b+4b+3b=180

simplifed is 12b=180

so b=15

Maslowich3 years ago

6 0

Answer:

b =15

Step-by-step explanation:

The sum of the angles of a triangle is 180

5b+ 4b+ 3b = 180

12b = 180

Divide by 12

12b/12 =180/12

b =15

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