Answer:
35m
Step-by-step explanation:
Triangle 1 has an 8:20 ratio which can be simplified to 2:5 ratio
so We can apply this to 14
(14/2) * 5
7 * 5
35 meters
-- Gage Millar Algebra 1/2 tutor
Could you show the problem, please? :)
The area of one of the triangular lateral faces is

You're told that the slant height, which is the same as the height of the triangular face, is 9.8, so you have

where

is the length of the base of the triangle, which is also the same as the side length of the base of the pyramid. So
The answer is 12.3 hours.
On the way to the beach, the family averaged 58 mi/h over 377 mi, so we take 377/58 to find the amount of time spent going to the beach. 377/58 = 6.5 hours.
On the way back, they averaged 65 mi/h over the same 377 mi, so we take 377/65. 377/65 = 5.8 hours.
6.5 + 5.8 = 12.3