+0  
 
0
187
1
avatar+128 

What is the length of  side BC of the triangle?

I think it could be 3, but I'm not sure. 

Acceptfully  Nov 8, 2017

Best Answer 

 #1
avatar+7065 
+1

Since  m∠B  =  m∠C  ,  triangle  ABC  is isosceles and

 

the length of side AC  =  the length of side AB

 

x + 8   =   2x - 1         Now we can find what  x  is.

                                  Subtract  x  from both sides of the equation.

8  =  x - 1

                                  Add  1  to both sides.

9  =  x

 

And..

 

the length of side  BC  =  3x - 3

                                                          Now we know that  x = 9

the length of side  BC  =  3(9) - 3

 

the length of side  BC  =  24

hectictar  Nov 8, 2017
 #1
avatar+7065 
+1
Best Answer

Since  m∠B  =  m∠C  ,  triangle  ABC  is isosceles and

 

the length of side AC  =  the length of side AB

 

x + 8   =   2x - 1         Now we can find what  x  is.

                                  Subtract  x  from both sides of the equation.

8  =  x - 1

                                  Add  1  to both sides.

9  =  x

 

And..

 

the length of side  BC  =  3x - 3

                                                          Now we know that  x = 9

the length of side  BC  =  3(9) - 3

 

the length of side  BC  =  24

hectictar  Nov 8, 2017

14 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.