the measuerments are
3.5 cm
3.9 cm
4.5 cm
A metalworker is creating decorative points in the form of triangular pyramids to go on top of a fence she is building. She wants to know the surface area of each pyramid. Use the surface area formula to find the surface area of each pyramid based on the figure.
(1 point)
c m^ 2
To find the surface area of a triangular pyramid, we need the measurements of the base and the height.
Assuming that the given measurements are the lengths of the sides of the triangular base of each pyramid, and not the height, we cannot calculate the surface area.
Please provide the height measurement of each pyramid in order to calculate the surface area.
3.5 cm
3.9 cm
4.5 cm
are the height measurement
Thank you for providing the height measurements of the pyramids.
To calculate the surface area of each triangular pyramid, we use the formula:
Surface Area = (base perimeter * height) / 2
For the first pyramid with a height of 3.5 cm, the surface area is:
Surface Area = (3.5 + 3.9 + 4.5) * 3.5 / 2
Surface Area = 12.9 * 3.5 / 2
Surface Area = 45.15 cm^2
For the second pyramid with a height of 3.9 cm, the surface area is:
Surface Area = (3.5 + 3.9 + 4.5) * 3.9 / 2
Surface Area = 12.9 * 3.9 / 2
Surface Area = 50.31 cm^2
For the third pyramid with a height of 4.5 cm, the surface area is:
Surface Area = (3.5 + 3.9 + 4.5) * 4.5 / 2
Surface Area = 12.9 * 4.5 / 2
Surface Area = 58.05 cm^2
Therefore, the surface areas of the three pyramids are:
1) 45.15 cm^2
2) 50.31 cm^2
3) 58.05 cm^2