Tessellations have been used by various cultures in decorating what familiar objects?
a buildings
b clothing
c manuscripts
d all of the above

D. All of the above.

Step-by-step explanation:

When we cover a surface with a pattern of flat geometric shapes such that there should have no overlaps or gaps, then the surface is called a tessellation.

Tessellations are decorative patterns and have functions such as providing durable and water-resistant pavement, floor or wall coverings.

Thus, tessellations have been used by various cultures in decorating building, clothing and manuscript.

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.