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  • A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will be:

A flagstaff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar conditions will be:

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Here;in;this;case;in;identical;contitions;angle;of;elevation;will;be; same\* so, heta =phiRightarrow an heta = anphi\* an heta = frac17.540.25;and; anphi =frach28.75\* On,; calculating ; we;get;h=12.5;m\* So,;height;of;building;is;12.5;m

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Deependra Verma

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