Question

Please answer these questions urgent please.. Please requested...
Question of class 8..

Answer 1

Answer:

(8)A+B+C+D=360

orA+B+100+60=360

orA+B+160=360

orA+B=360-160

or A+B=200

or 1/2(A+B)=200/2

or (1/2)A+(1/2)B=100

Now in triangle APB,

(1/2)A+((1/2)B+angle APB=180

or 100+angle APB=180

or angle APB=180-100

or angle APB=80

(7)Let mesures of equal angles of the quadrilateral be x

therefore

115+45+x+x=360

or 160+2x=360

or2x=360-160

or2x=200

or x=200/2

or x=100

Therefore mesure of each of equal angles is 100 degree