1.what is the slant height for the given pyramid to the nearest whole unit.

pyramid base= 12 cm
height=8 cm
A.5 cm
B.9 cm
C.14 cm
D.10 cm

What is the length of the diagonal for the given rectangular prism to the nearest whole unit?
the unit is the length=6, width=5, height=9

A. 8 cm
B.10 cm
C.11 cm
D.12 cm

3 answers

sl^2= [(1/2) base]^2 + h^2
so
sqrt (36+64)

d = sqrt [36 + 25 + 81]
i don't get it whats the answer
sqrt = square root
so:
sqrt (36+64) = sqrt (100) = 10
and the other one is:
sqrt [36+25+81] = sqrt [142] ≈ 11 or 12