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in ABR AND RCD
A= D
B= C
ARB = CRD
AAA , ABR ~DCR
HENCE
AB/ DC = BR/ CR = AR/ DR
AB/1.4 = 75/12= AR/ DR
AB/ 1.4= 25/4 = AR/DR
AB= 35/4
AR = √(35/4)^2 - (7.5)^2
= √76.56- 56.25
= √19.31
A= D
B= C
ARB = CRD
AAA , ABR ~DCR
HENCE
AB/ DC = BR/ CR = AR/ DR
AB/1.4 = 75/12= AR/ DR
AB/ 1.4= 25/4 = AR/DR
AB= 35/4
AR = √(35/4)^2 - (7.5)^2
= √76.56- 56.25
= √19.31
muskan1143:
hey
AR is 4.5 m in answer
ok and what about AB
ok i understand
thanks
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