Bihar Board Class 10 Maths Question Paper 2019

+ (cosA + secA) = 7 + tan2A + cot2A

'$�'¥f '$)' 8 �- � � � PQ i, p� Q tR � � mtff

T tR W�i:SG � -g I TP � � fflTI cR I

PQ i a chord of length 8 cm of a circle of radiu� 5 cm. The tangents at P and Q intersect at a

pomt T. Fmd the length ofTP.

32. 6 � � 3ITT 1.5 � � � � ll 'CTAl 10 fr'lj-lfi /"ERT $1 "'f1TR "ft� Wt I 30 �

lf � � �'1 � ct; � � qrq,ft � � cf, � 8 �- 116{ qRt qfr

\Vater i-, Oo\\ mg with a peed of 10 km/hour rn a canal 6 m \\ idc and I 5 m deep. HO\\ much

area Will JI imgate m 10 minute,, if 8 cm of �t.mdmg water is needed for irrigation?

A v.ell ot diameter 1 m is dug 14 m deep Till Parth taken out of it has been spread e cnly all

around 11 in the �hapc of a cir ular nng of\\ 1dth-+ m to trom an embankment. Fmd thi' height

of the embankment.

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