Mathematics for IGCSE & O level - Algebraic Manipulation (Section 3 - No. 25)
A rectangle has a length of 'a' and a width of 'b'. What is the formula for the area of the rectangle?
a + b
2a + 2b
a * b
2ab
คำอธิบาย
Area of rectangle = length * width, which is a * b or ab.