a housewife bought 3 packets of flour but used only 2 1/4 packets. How many kilograms of flour were left if each packet contained 1/2 kg of flour?

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Find the length of the following tangent segments to the circles centered at o and o' whose radii are 5 and 3 respectively and the distance between o and o' is 12. what is the tangent segment of cd?

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.