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Rachel has a toy shaped like a triangular pyramid in which the base and the lateral faces are congruent equilateral triangles. The side lengths of the triangles are 4 inches. The height of each triangle is about 3.5 inches. Rachel wants to cover all the lateral surfaces except for the base with yellow paper.
The amount of paper required to cover the lateral surfaces is about square inches. If she wants to cover the entire pyramid with yellow paper, she would require about more square inches of paper.

Sagot :

21fonziv
The lateral area that Rachel needs to cover is 21 inches.
angelisagobin

Answer:

21 is the answer for both parts of the question!

Step-by-step explanation:

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