Rafter Drawings: Rise, Projection and Sloping Length

Rafter Drawings: Rise, Projection and Sloping Length

Original quantitative learning practice in English. All 24 questions are included. Four supplied cases exercise six related calculation targets; they form one topic, not four separate tests. Every question includes the complete initial data. Use the stated model and retain intermediate precision. Choose one answer. Learning target: 20/24, not an official pass mark. This bank covers the calculation topic in its title; it is not a complete professional examination, design approval or operating instruction.
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A straight roof line rises 3 units vertically for each 4 horizontal units. Its slope-length factor is therefore 5/4 per horizontal unit. The horizontal wall-to-ridge run is 5.2 m; the eave extends another 0.7 m horizontally on the same line. There are 14 identical geometric lengths. Ignore joints, cuts, kerfs and structural design. Calculate the wall-to-ridge sloping length in m. Keep intermediate values unrounded; round the final result to four decimal places if necessary.