Question

"
True or false.
1) A quadrilateral can have all four angles as obtuse.
2) A perfect square cannot have 8 as its units digit.
( )
( )
3) In tossing a coin, all possible outcomes are HH, HT. ( )
4) The sum of all the measures of the four angles of a convex quadrilateral is 360'​

Answer 1

Answer:

1 FALSE  

2 The unit digit of a perfect square can be only 0, 1, 4, 5, 6 or 9. TRUE

3 When you toss a coin there are two possible outcomes: 'heads' or 'tails'. Each of these outcomes is equally likely, since there is 1 'head' and 1 'tail' on the coin. TRUE

4 TRUE

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