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Today, 10:04

the perimeter of the base of the regular triangular pyramid is P=16.5 find the sum of all edges of this pyramid, if the perimeter of a lateral face is 18.5 cm.

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  1. Today, 12:27
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    35 cm

    Step-by-step explanation:

    Perimeter is the sum of all edges of the given figure.

    Given: the perimeter of the base of the regular triangular pyramid is P = 16.5 cm and the perimeter of a lateral face is 18.5 cm.

    To find: sum of all edges of this pyramid

    Solution:

    sum of all edges of this pyramid = perimeter of the base of the regular triangular pyramid + perimeter of a lateral face = 16.5 + 18.5 = 35 cm
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