Roof Plan Arithmetic: Sloped Rectangles and Triangles

Roof Plan Arithmetic: Sloped Rectangles and Triangles

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 supplied roof geometry contains two identical rectangular slopes. Each has eave length 10 m and horizontal ridge run 5 m. The sloping-length factor is 1.25. Also include one triangular surface whose base is 4.8 m and perpendicular height measured ON that surface is 3.6 m. All surfaces are distinct; ignore overlaps and openings. Calculate the sloping ridge-run length in m. Keep intermediate values unrounded; round the final result to four decimal places if necessary.