Question

match the area formula with the correct shape.
column a

1. ___ square
2. ___ rectangle
3. ___ triangle
4. ___ circle
5. ___ trapezoid

column b
a. $a = s^{2}$
b. $a = \frac{1}{2}(b_{1} + b_{2})\cdot h$
c. $a = \frac{1}{2}bh$
d. $a = l\cdot w$
e. $a = \pi r^{2}$

Explanation:

• For a square with side length \(s\), the area formula is \(A = s^{2}\).
• For a rectangle with length \(l\) and width \(w\), the area formula is \(A=l\cdot w\).
• For a triangle with base \(b\) and height \(h\), the area formula is \(A=\frac{1}{2}bh\).
• For a circle with radius \(r\), the area formula is \(A = \pi r^{2}\).
• For a trapezoid with bases \(b_{1}\) and \(b_{2}\) and height \(h\), the area formula is \(A=\frac{1}{2}(b_{1}+b_{2})\cdot h\).

Answer:

1. a. \(A = s^{2}\)
2. d. \(A=l\cdot w\)
3. c. \(A=\frac{1}{2}bh\)
4. e. \(A = \pi r^{2}\)
5. b. \(A=\frac{1}{2}(b_{1}+b_{2})\cdot h\)