You need to fix some issues: you only have one test working, you are rounding to 3 decimal places, and the last test case is false (it should give 502.655)
also you shouldn't use isequal when you use pi.
The test suite has been updated.
The value of pi is wrong, but so it is the test suite.
given 3 sides, find area of this triangle
Back to basics 21 - Matrix replicating
Colon operator of two vectors
Back to basics - mean of corner elements of a matrix
Concatenate two strings
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