Write down the number of edges of each of the following figures : (i) Tetrahedron (ii) Rectangular pyramid (iii) Cube (iv) Triangular prism.

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Solution

(i) Tetrahedron : It has 6 edges (ii) Rectangular pyramid : It has 8 edges (iii) Cube : It has 12 edges. (iv) Triangular prism.: It has 9 edges Ans.

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