= one side of ) ……(line = = x = 78 x mm 3. In the given diagram BD FE and HF CB. AF = 27 ; AH = 36 ; mm mm HC = 16 ; FB = ; AE = and ED = mm x mm a mm b mm. Calculate: The value of x The value of : a b In ABC : HF CB (Given) = one side of ) …(line = = 12 x mm In ABD : BD FE (Given) = one side of ) …(line = mm Activity 3 Calculate a) The first proportional to 7 , 15 and 21 b) The fourth proportional to 3 , 8 and 15 c) The third proportional to 4 and 9 d) The mean proportional to 4 and 2. In the diagram, A, B and C are the vertices of ABC, with BA DE. AE = units; EC = 55 units; DC = 65 units and BD = 26 units. x Determine the of x. 3. In the diagram KLMN is a parallelogram. ML is produced to R such that RL = 20 LM = x = . Determine the value of mm. mm. x.
= ……(line one side of ) = x = x = 78 mm 3. In the given diagram BD FE and HF CB. AF = 27 mm ; AH = 36 mm ; HC = 16 mm ; FB = x mm ; AE = a mm and ED = b mm. Calculate: The value of x The value of a : b In ABC : HF CB (Given) = …(line one side of ) x = = 12 mm In ABD : BD FE (Given) = …(line one side of ) = mm Activity 3 Calculate a) The first proportional to 7 , 15 and 21 b) The fourth proportional to 3 , 8 and 15 c) The third proportional to 4 and 9 d) The mean proportional to 4 and 2. In the diagram, A, B and C are the vertices of ABC, with BA DE. AE = x units; EC = 55 units; DC = 65 units and BD = 26 units. Determine the of x. 3. In the diagram KLMN is a parallelogram. ML is produced to R such that RL = 20 mm. LM = x mm. = . Determine the value of x.
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