Answer:
128 my answer needs to be long so im just gonna span a little
Equilateral triangle are also equiangular which means all angles are 60 degrees. thus our needed altitude is the leg of a right triangle with other leg 4 and hypotenuse 8. 4² +a² = 8²
a² = 48
a=√48 = 4√3
Ok, I'm only in 8th grade but I believe you do addition first in the problem. Hope this helps! <3
242 cm because 418/ 3.8 = 110, 110 x 2.2 = 242 cm
