Question

find area of shaded region

Answer 1

आयत का क्षेत्रफल =12×4=48cm2
त्रिभुज का क्षेत्रफल =1/2×9×4=18cm2
छायांकित भाग का क्षेत्रफल =आयत का क्षेत्रफल - त्रिभुज का क्षेत्रफल
=(48-18)cm2=30cm2

Answer 2

area of shaded region= area of rectangle -area of triangle. area of rectangle= (l×b) 12×4.area of triangle = 1/2×(4×9).4 is height as it is breadt of rectangle
answer= 48-18=30msq