Answer:
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
