Find the Lengths of All the Unknown Members of the Truss

question 96

Multiple Choice

Find the lengths of all the unknown members of the truss. Round your answer to one decimal place.
$$A = 30$$

• A) \(b \approx 22.0 , a \approx 37.6\)
• B) \(b \approx 21.0 , a \approx 36.6\)
• C) \(b \approx 24.0 , a \approx 39.6\)
• D) \(b \approx 36.6 , a \approx 21.0\)
• E) \(b \approx 23.0 , a \approx 38.6\)

---

Definitions:

Cognitive Ability

The capacity of an individual to perform the various mental activities most closely associated with learning and problem solving.

Volume or Mass

The volume refers to the amount of space an object occupies, while mass is a measure of an object's quantity of matter.

Piagetian Thought

A theory of cognitive development proposed by Jean Piaget, detailing how children construct a mental model of the world through stages.

Egocentrism

A cognitive trait where an individual is unable to distinguish between their own perspective and that of others.