Question

if ( mangle abd = 64^circ ) and ( mangle cbd = 30^circ ), then ( mangle abc = \boxed{?}^circ )

Explanation:

Step1: Identify angle addition

$\angle ABC = \angle ABD + \angle CBD$

Step2: Substitute values

$\angle ABC = 64^\circ + 30^\circ$

Step3: Calculate sum

$64 + 30 = 94$

Answer:

94