Help please

[opaque ore]

I beg

[gloomy kindle]

so the shape splits into a rectangle and triangle

u need to find the area of the rectangle

quite simple

9 x 2 is 18

now we need to find the area of the triangle

which is b x h

all over 2

problem is we don't have the base

but we can find that with pythagoras theorem

the height is 9

so the base of the triangle is 12

now find area of triangle using (12 x 9)/2

108/2 = 54

add up ur two areas, 54 and 18 to get 72cm²