Answer:
123+b=180 (being sum of straight angle)
b=180-123
b=57
3 is less than the sum of any positive number added with 4
Volume of the pyramid:

Perimeter of the cross-section:


Area of the cross-section:


First derivative test:

Then the height of the cross-section/pyramid is

The volume of the pyramid that maximizes the cross-sectional area
is

This is an enlarged dilation
Answer:
108+621= 100+629 hhh grade 2?