Use the image to answer the question.
An illustration shows a 3 D rectangular base prism with two opposite triangular faces. A point is shown on the top edge and one each on the lateral edge of the front triangular face. The three dots are joined to form a triangle.
What is the two-dimensional shape created by the sliced object?
triangle
hexagon
parallelogram
rectangle
triangle
What is a two-dimensional representation of a three-dimensional figure?
a net
a square
a cube
a rectangle
a net
What is the missing length of a rectangular prism where the height and width are both 9 cm and the surface area is 432 cm2?
Let the length of the rectangular prism be "L".
The formula for the surface area of a rectangular prism is:
S = 2lw + 2lh + 2wh
Substituting the given values, we get:
432 = 2(9)(L) + 2(9)(9) + 2(L)(9)
Simplifying,
432 = 18L + 162 + 18L
432 = 36L + 162
270 = 36L
L = 7.5
Therefore, the missing length of the rectangular prism is 7.5 cm.
Fill in the blanks to complete the formula for the surface area of a triangular prism.
The surface area of a triangular prism is S.A.= +(S1+S2+S3)
(b × h) +(S1+S2+S3)
Fill in the blanks to complete the formula for the surface area of a triangular prism.
The surface area of a triangular prism is S.A.=
+(S1+S2+S3)