A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
How do I find the missing side of an isosceles triangle if A=42 and B=42. How do I find C?
A.
42°
B.
69°
C.
74°
D.
132°
anonymous
 one year ago
How do I find the missing side of an isosceles triangle if A=42 and B=42. How do I find C? A. 42° B. 69° C. 74° D. 132°

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0did you leave something out?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2In a triangle, if two sides are congruent, then the opposite angles are congruent. This can be restated as: The base angles of an isosceles triangle are congruent.

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2dw:1438149014299:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2dw:1438149049857:dw

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2The sum of the measures of the 3 angles is 180 deg. x + x + 42 = 180

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0A triangle must=180Deg

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.2No. m<C is not 42. Solve the equation below. 2x + 42 = 180 Solve for x.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If <C=42 then <B Would have to= 42 as <C and B are = To each other Meaning <A <B and <C together would = 126 deg which couldnt be possible, Dont just throw out random numbers Look at the picture surly <A Could not= <C

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I am going to put in in simple terms. O kay <C and <B must be the same or = each other. We know <A is 42 Degrees and can not= the same as <C and B. So to Find Do 18042 Because a triangle= 180 and we already know m<A You will get 138 Now Divide by 2 because there are 2 angles left/ <C and <B You will get 69 So < C and <B both = 69 <C =69

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Thank you @aric200 ! :)

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.22x + 42 = 180 2x = 138 x = 69
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.