I need help with finding the area

Area of the given shape = Area( Triangle + Square + Rectangle)
Area of Triangle = 1/2 x base x height
= 1/2 x (7-2) x (9-5)
= 1/2 x 5 x 4
= 10
Area of square = side × side
= (7-2) x ( 9-4)
= 5 x 5
= 25
Area of rectangle= base x height
= 2 x 5
= 10
Therefore , the area of given shape = 10+25+10 = 45