Three roads cross at an intersection. What is the minimum number of angles you would need to know to be able to solve for all angles in the diagram below? Prove your answer.

The diagonals of a rhombus are 12 inch and 16 inch long, the length of a side of a rhombus is 10 inch, what is the height of the rhombus

The diagram shows a 7cm by 6cm rectangle based pyramid. all the diagonal sides - ta, tb, tc and td are length 10cm. m is midpoint of rectangular base. work out height mt to 1 decimal place

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?