Step-by-step explanation:
The lateral area is

The surface area is

The volume is

His error is the second choice.
Aiden should have calculated
area = (1.1 * 5.4) / 2
because triangle area = half the base times the altitude.
The answer to the question is b
Answer:

Step-by-step explanation:
This is a 30°-60°-90° triangle, so automatically,
, and
.
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