Question

plsee

Find the value of following

Answer 1

ok. a simple trick should help you in this... take angles in this way
<A=B-D,<C=B+D... that way you can get value of <B... also use the sin rule for the sides a,b and c. Hope this helps. try and let me know.

Answer 2

can u plse solve this

Answer 3

let me help u... but u will have to give me the answers...
As defined <A=B-D,<C=B+D
Apply angle sum property (<A+<B+<C)=180 and get value of <B

Answer 4

yes , i will

Answer 5

angle B = 180 - (angle A+angle C)

Answer 6

yes... <B=180-(<B-D +<B+D)=180-(2*<B) find <B from here

Answer 7

angle B = 180 - (B-D+B+D)
angle B = 180 - 2 angle B
or
3 angle B = 180
angle B = 180/3 = 60

Answer 8

wait from where D angle came

Answer 9

<D is just a common difference for our arithmetic progression... not part of our triangle... Did u get that??

Answer 10

@msingh - do u know the sine rule for angles in a triangle ??

Answer 11

d = common difference = second term - first term

Answer 12

wht about sine rule ??

Answer 13

sinA/a = sinB /b= sinC/c

Answer 14

@msingh - right... use this to get a/c and c/a in terms of their corresponding sines and evaluate the remaining expression to get the value :)

Answer 15

okay