Surface Area of Triangular Prisms WORKSHEET
Suitable for Year groups: Year 9, Year 10
GCSE Tier: Foundation/Higher
Targeting grades: 4-5
Prerequisite knowledge: Nets of 3D shapes. Finding the area of rectangles and triangles.
Surface Area of Triangular Prisms WORKSHEET DESCRIPTION
This worksheet helps students develop the skills needed to calculate the surface area of triangular prisms accurately.
In Section A, learners work with nets to identify and label each face, calculate its area, and then combine these to find the total surface area. Some problems include ready-drawn nets, while others require students to draw and label them, helping to build spatial reasoning and geometric understanding.
In Section B, students calculate the surface area directly from given dimensions without drawing the net, encouraging the use of efficient methods. The section then progresses to more challenging problems, including error spotting, finding a missing length from a given surface area, and equating the surface area of a triangular prism to that of a cube.
In Section A, learners work with nets to identify and label each face, calculate its area, and then combine these to find the total surface area. Some problems include ready-drawn nets, while others require students to draw and label them, helping to build spatial reasoning and geometric understanding.
In Section B, students calculate the surface area directly from given dimensions without drawing the net, encouraging the use of efficient methods. The section then progresses to more challenging problems, including error spotting, finding a missing length from a given surface area, and equating the surface area of a triangular prism to that of a cube.
