Question
When finding the volume of a triangular prism, first we must find the area of the base.
What is the area of the base of the triangular prism?
height of 3cm
width of 2cm
length of 7cm
The base of the triangular prism is a triangle, and the formula to find the area of a triangle is 1/2 * base * height. In this case, the base is 7cm and the height is 3cm.
Area of the base triangle = 1/2 * 7cm * 3cm
Area of the base triangle = 10.5 square cm
Therefore, the area of the base of the triangular prism is 10.5 square cm.
use the 7th grade mathematics Formula sheet
The formula for finding the area of a triangle is given by the formula sheet as:
Area = 1/2 * base * height
Given that the base of the triangle is 7cm and the height is 3cm, we can substitute these values into the formula:
Area = 1/2 * 7cm * 3cm
Area = 1/2 * 21cm
Area = 10.5 square cm
Therefore, the area of the base of the triangular prism is 10.5 square cm.