Question

b = 4.7 in
triangle: h = 7.2, b = 6.8 a = bh = (7.2)×(6.8) = 48.96 units
circle: radius = 5 m a = πr
8 ft

Explanation:

For the Triangle (assuming we need to find its area, correcting the formula as the area of a triangle is \( A=\frac{1}{2}bh \)):

Step1: Recall the triangle area formula

The area of a triangle is given by \( A = \frac{1}{2} \times \text{base} \times \text{height} \), where base \( b = 6.8 \) and height \( h = 7.2 \).

Step2: Substitute the values into the formula

\( A=\frac{1}{2}\times6.8\times7.2 \)
First, calculate \( 6.8\times7.2 = 48.96 \)
Then, \( \frac{1}{2}\times48.96 = 24.48 \)

For the Circle (radius \( r = 5 \, \text{m} \), area of a circle is \( A=\pi r^{2} \)):

Step1: Recall the circle area formula

The area of a circle is \( A=\pi r^{2} \), with \( r = 5 \, \text{m} \).

Step2: Substitute the radius into the formula

\( A=\pi\times(5)^{2}=\pi\times25\approx 78.54 \, \text{m}^2 \) (using \( \pi\approx3.14 \))

If we consider the triangle's correct area calculation (the original work had a mistake using \( A = bh \) instead of \( A=\frac{1}{2}bh \)):

Answer:

(Triangle Area):
\( 24.48 \) (units, assuming the original units for \( b \) and \( h \) are consistent, like units²)