CAFig. 626SOLUTION A rough figure will help us (Fig62 C12 cmPythagoras

1.	CAFig. 626SOLUTION A rough figure will help us (Fig62 C12 cmPythagoras property.Fig 6.28AB=AC + BC5+ 12 - 25 +144169 13AB-13. So, AB - 13the length of AB is 13 cm.Note: To identify perfect squares, you may use prime factorisation technique55Try THESEFind the unknown length x in the following figures (Fig6.29):15 cm8 cm
Answer» (i) 5(ii) 10(iii) 17 (i)pythagorus theorum(hypotenus)sq.=( base)sq.+(pependicular)sq.(xx)=(33)+(4*4)(x)sq.=9+16(x)sq.=25x=25\2x=12.5 (1) =5 (2)=10 (3)=17

CAFig. 626SOLUTION A rough figure will help us (Fig62 C12 cmPythagoras property.Fig 6.28AB=AC + BC5+ 12 - 25 +144169 13AB-13. So, AB - 13the length of AB is 13 cm.Note: To identify perfect squares, you may use prime factorisation technique55Try THESEFind the unknown length x in the following figures (Fig6.29):15 cm8 cm

Answer»

(i) 5(ii) 10(iii) 17

(i)pythagorus theorum(hypotenus)sq.=( base)sq.+(pependicular)sq.(x*x)=(3*3)+(4*4)(x)sq.=9+16(x)sq.=25x=25\2x=12.5

(1) =5

(2)=10

(3)=17