What is the missing length of side b and A?

b=42 ( base angles are equal)

a=24

then taking a as refrence angle

tan24=p/b

tan24=a/42

a= -89.66( but length cant be negative so )

a=89.66

(d)

step-by-step explanation:

given: the line in the graph passes through points (5,30) and (6,26).

then, the equation of line is:

now, put y=a(n) and x=n,

hence, option d is correct.