A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
prove that a+ b= y for the angles given in the figure.
anonymous
 3 years ago
prove that a+ b= y for the angles given in the figure.

This Question is Closed

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0dw:1358143521967:dw

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0side ab, bc, cd, de are equal

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0is the triangle a rtangled one at D

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0let DE= ab=bc= cd=x tany =1 tana=DE/DA =1/3and tanb=DE/DB=1/2 now tan(a+b) =(1/3 +1/2)/( 1 (1/3)(1/2))= (1/2+1/3)/(11/6) =(5/6)/(5/6)=1 thus tan(a+b)=1 but tany=1 hence tan(a+b)=tany thus a+b=y

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0could have just exterior angles

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Thank Youu! It was helpful :)

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0the other way to solve is to complete the rectangle with sides as AD and DE and draw the inner squares and then use elementary geometrical properties
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.