Question

1. which of these requirements are things you would need to consider when designing an umbrella that will keep a person dry in rain showers? choose all that apply. a. fabric that is water repellent or waterproof b. colorful fabric print c. fabric that you cannot see through d. lightweight materials 8. how would the precisely stated engineering design problem of a treehouse to be used by six-year-old children be different from that of a treehouse to be used by teenagers? record your evidence.

Explanation:

Question 7

• Option A: Water - repellent/waterproof fabric is essential to keep a person dry in rain, so it's a relevant requirement.
• Option B: Colorful fabric print has no relation to keeping a person dry, so it's not relevant.
• Option C: The ability to not see through the fabric doesn't affect the umbrella's ability to keep a person dry, so it's not relevant.
• Option D: Lightweight materials are important for the usability of the umbrella while keeping the person dry, so it's a relevant requirement.

Answer:

A. fabric that is water repellent or waterproof, D. lightweight materials