Wednesday, January 11, 2012

Plzz help me?

1. Gulido Palumbo is a Venetian gonodolier. Gulido needs to know how deep it is in front of his pier. he notices a water lily sticking straight up from the water with the blossom 18 cm above the surface. Gulido then pulls the lily to one side, keepin the stem straight, untill the blossom touches the water at spot 36 cm from where the stem first broke the surface. from this data, Gulido is able to calculate the depth of the water.



a. what is the depth of the water?



b. if the lily was only 12 cm from the water when sticking straight up and the depth of the water has not changed, what would tbe the distance when Gulido pulls the lily untill the blossom touches the water?

Plzz help me?
its a standard right-angled triangle pythagoras theorem question. just draw a diagram using the depth of the water as x and the hypontenuse as "x + 18" and the other side as 36cm.



depth of the water is 27cm i think. working on part b.



the distance in part b is the square root of 792 which i can't be arsed to work out in my head.

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