Question
Fri March 13, 2015 By: Vatsal Choudhary

Differentiate between base angle and vertex angle with the help of a suitable diagram. Also draw an equilateral traingle of 5 cm and label its base angle and vertex angle.
 

Expert Reply
Vimala Ramamurthy
Sat March 14, 2015
C o n s i d e r space t h e space f o l l o w i n g space f i g u r e.
I n space t h e space a b o v e space t r i a n g l e space A B C comma A space i s space t h e space v e r t e x space a n g l e space a n d space B space a n d space C space a r e space t h e space b a s e space a n g l e s. T h e space a n g l e space o p p o s i t e space t o space t h e space b a s e space i s space c a l l e d space t h e space v e r t e x space a n g l e.  N o w space l e t space u s space c o n s t r u c t space a n space e q u i l a t e r a l space t r i a n g l e space o f space s i d e space 5 space c m.  S t e p space 1 colon space D r a w space a space l i n e space f r o m space a space p o i n t comma space s a y space B. S t e p space 2 colon space T a k e space a space m e a s u r e m e n t space o f space 5 space c m space i n space t h e space c o m p a s s. S t e p space 3 colon space W i t h space c e n t r e space a s space B comma space d r a w space a n space a r c space t o space i n t e r s e c t space t h e space l i n e space a t space C. S t e p space 4 colon space N o w space w i t h space c e n t r e space a s space C comma space a n d space w i t h space t h e space s a m e space r a d i u s comma space d r a w space a n space a r c. S t e p space 5 colon space W i t h space c e n t r e space a s space B comma space a n d space w i t h space t h e space s a m e space r a d i u s space d r a w space a n space a r c space t o space m e e t space t h e space p r e v i o u s space a r c space a t space A. S t e p space 6 colon space J o i n space A B space a n d space A C. T r i a n g l e space A B C space i s space t h e space r e q u i r e d space t r i a n g l e.
Home Work Help