Question

find the area of this rectangle.
4 cm
5 cm
a = ? cm²
area of a
parallelogram
a = bh

Explanation:

Step1: Substitute the values into the formula

The formula for the area of a rectangle (which is a type of parallelogram) is \(A = bh\). Here, \(b = 5\) cm (base) and \(h=4\) cm (height). So, \(A = 5\times4\).

Step2: Calculate the product

\(5\times4=20\).

Answer:

\(20\)