Question

1) if the multiple of x+x+x=230-y .find the value of x and y
2) if the bisector of angle ABC and angle acd of the triangle ABC meet at a point o .then prove that angel boc = 90+1/2 of angel A​

Answer 1

1. first we have to add all the 3 x which will give us 3x now we have to substitute the value -y and 230 on left hand side now we can solve it by middle term factorisation