85.9k views
5 votes
M<2=4x+12
Someone help

M<2=4x+12 Someone help-example-1
User Godfather
by
4.7k points

2 Answers

5 votes

Answer: m∠2 =60

60=4x+12

subtract 12 from both sides

60-12=4x+12-12

60-12=4x

48=4x

divide both sides by 4

48÷4=4x÷4

48÷4=x

x=12

Plug it into the equation

4(12)+12=

48+12=

m∠2 =60

another proof is that they are congruent

I hope this is good enough:

User Edmilson Junior
by
3.9k points
1 vote
x=12. So this one says that it has 3 congruent sides so therefore it has to have 3 congruent angles. Here we have angle 2 and we have angle 60. Given the definition of triangle congruence, we can say that 60 is angle 2 and that the third angle is also 60 but it’s not relevant in this problem. So knowing that angle 2 is 4x+12 we solve for x by seeding that equal to 60 and then solving for x we get x=12. Hope this helps!!!!
M<2=4x+12 Someone help-example-1
User Jeff Cuscutis
by
5.2k points