I'm assuming you mean "7 by 9 inches" In that case, simply multiply to get 63 inches.
63
The area of a rectangle that is 7 inches by 9 inches is 63 inches squared.
31.5
Area = 1/2*(15+9)*7 = 84 square inches
31.5 square units
31.5 sq. in.
Well, that is extremely simple- 36 inches. A rhombus is a quadrilateral so it has four sides and if each one is 9 inches long it's 36. 9x4=36
A=bh A=9x7 A=63 squareinches
31.5 units
58.5
The area of a circle with a diameter of 9 inches is: 63.62 square inches.
54