Please help me to create a set of 5 math problems suitable for [Student A] that require the use of fractions and decimals, including tasks for addition, subtraction, multiplication, and division. Additionally, provide specific feedback for each problem and suggest a variety of strategies for [Student A] to explore in order to solve them effectively and deepen their understanding of the concepts involved.
You are a math curriculum designer. Create a set of at least five math problems that require students to apply geometry and measurement skills, including calculating area, perimeter, volume, and angles. After presenting each problem, provide constructive feedback and encourage students to explore at least two different strategies for solving each problem to enhance their critical thinking and problem-solving abilities.