Answer:
V = 396 cm³
Step-by-step explanation:
the volume (V) of the prism is calculated as
V = Ah ( A is the area of the triangular face and h the height of prism )
A = 
bh ( b is base and h perpendicular height )
here b = 9, h = 8 , then
A = × 9 × 8 = 4.5 × 8 = 36 cm² , so
V = 36 × 11 = 396 cm³
8. The corresponding angles of similar triangles are congruent. Angle U corresponds to angle R, so the value of x will be the value of the unmarked angle in ∆PRQ. The sum of angles is 180°, so the unmarked angle (x) has measure ...
... x = 180° - 60° - 40° = 80° . . . . matches selection A
9. The ratio of the lengths of the original to its image is the same in all cases. The appropriate choice is ...
... B. AB/A'B' = BC/B'C'
The other choices have mixed ratios that don't make any sense.
10. The parallel base makes ∆RTU ~ ∆RQS and divides RQ in the same proportion it divides RS. The appropriate choice here is ...
... C. RT/TQ = RU/US
Yeah he his incorrect because t=subsequently
Answer:
18
Step-by-step explanation:
