Answer:
40 and 202.5 m³
Step-by-step explanation:
(7)
Since the figures are similar then the ratios of corresponding sides are equal, that is
= ( cross- multiply )
12 PQ = 480 ( divide both sides by 12 )
PQ = 40 in
-------------------------------------------------------------------
The volume (V) of a pyramid is calculated as
V = Ah ( A is the area of the base and h the height ) , then
V = × 9² × 7.5
= × 81 × 7.5
= 27 × 7.5
= 202.5 m³
the volume for the second page is 607.5
the answer is h 86.8 first you gotta take all the numbers then drop the two lowest then you multiply the ones you hsve left then divide it by the number of grsdes there is
8
5
-1
-4
b. 4.5 cm
a. 42 mm is the answer