Question

I need help to find the surface area and round it to the nearest hundredth if necessary. I will send the photo because it does not fit.

Answer 1

The figure consist of two triangles and three rectangles.

The dimension of rectangles are,

Rectangle 1:

Length L = 10 cm

Width W = 7 cm

Rectangle 2:

Length L = 8 cm

Width W = 7 cm

Rectangle 3:

Length L = 6 cm

Width W = 7 cm

The dimesions of triangles are,

Triangle 1 and triangle 2:

Base b = 6 cm

Height h = 8 cm

Determine the suraface area of closed body.

`\begin{gathered} A=10\cdot7+8\cdot7+6\cdot7+(1)/(2)\cdot6\cdot8+(1)/(2)\cdot8\cdot6 \\ =70+56+42+24+24 \\ =216 \end{gathered}`

Thus surface area of figure is 216 square centimeter.