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The length of shadow of a tower standin...

The length of shadow of a tower standing on the ground is found to be 60 metres more when the Sun's angle of elevation changes from `45^@` to `30^@`. Find the height of the tower.

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UNITED BOOK HOUSE-BIDHANNAGAR GOVT, HIGH SCHOOL-EXERCISE
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  4. State and Prove Pythagoras theorem.

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  8. Draw the mean proportional of line segments of lengths 4 cm and 3 cm.

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  9. use bal to draw the circumcircle of a right angled triangle having the...

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  19. Find the mode of the following frequency distribution table.

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