Coin Mercantile Exchange, Invest and Collect Rare Modern World Coins

Posts Tagged ‘diameter’

What is the Answers to these questions?

3. Given an equilateral triangle with sides, a square with side s and a circle with diameter a, which figure has the greatest area?

5. I have twelve envelopes, which are numbered 1 through 12 and twelve cards which are numbered 110 through 121. How can I place one card inside each envelope so that the number on each envelope is a divisor of the number on the… Continue reading

2 comments - What do you think?  Posted by admin - September 7, 2010 at 5:51 pm

Categories: Trivia   Tags: bricks, cards, ceiling lights, Coins, diameter, digits, divisor, envelopes, equilateral triangle, fence, gasoline tank, great gross, price tag, rectangular garden, three times, train, whole numbers

Chemistry Problem?

A Canadian .00 coin is 1.3 mm thick. The diameter of the coin is 29 mm. There is a bronze-colored circle in the center of the coin, that has a diameter of 16 mm, surrounded by an outer ring of a silver-colored alloy. Find the volume of the outer ring of the coin.… Continue reading

5 comments - What do you think?  Posted by admin - August 26, 2010 at 1:13 am

Categories: Canadian Coins   Tags: 16 mm, alloy, Colored Circle, diameter

How much is this worth?

a Turks and Caicos Islands 1976 Twenty Crown Queen Victoria Silver Coin. it was struck at the royal canadian mint. it’s diameter is 45 millimeters, and weight is 600 grains struck in solid sterling silver, and it’s finish is proof.… Continue reading

2 comments - What do you think?  Posted by admin - July 21, 2010 at 6:29 pm

Categories: Canadian Coins   Tags: diameter, grains, millimeters, proof, Queen Victoria, royal canadian mint, Silver Coin, solid sterling, sterling silver, turks and caicos, turks and caicos islands

how much are these old coins worth?

united states liberty coins

1986 1 dollar
1983 XXIII olympiad los angeles (1 dollar)
1986 half dollar

and then canadian coins:
manitoba 1870.1970
it says 1870 and then a dot in the middle and then 1970

all the coins are big and fat. mint condition, sealed in a plastic container.

1986 half dollar coin specifications
diameter:1.205 inches
11.34 grams
.33 troy oz copper
0.3… Continue reading

1 comment - What do you think?  Posted by admin - September 11, 2009 at 3:16 am

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