Mathematics, 26.05.2021 02:50 alexandraparava
OABCD is a square based pyramid of side 4 cm as shown in the diagram. The vertex D is 3 cm
directly above X, the centre of square OABC. M is the midpoint of AB.
(a) Find the length of XM
(b) Calculate the length of DM
c) Calculate the angle between the face ABD and the base OABC.
Answers: 3
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One positive number is 9 more than twice another. if their product is 95, find the numbers
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Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.
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OABCD is a square based pyramid of side 4 cm as shown in the diagram. The vertex D is 3 cm
directly...
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