Answer:The answer to this question is 15
Explanation:
array1.length contains the number of rows.Since a 2-D array is a 1-D array of 1-D arrays.So the value of array1.length will be 15 and the value of array1[0].length will be 10 that is the number of columns.So we conclude that the answer is 15 that is the number of the rows.
CONVEX polygon.
An equilateral triangle is a triangle that has the same side length and same angles.
It is identified as a convex polygon because it does not have a reflex angle.
A reflex angle is an angle that is greater than 180° but lesser than 360°. Interior angles of a triangle sum up to 180°.
Task view is the option that you would not see on a Windows 10 Start menu, whereas if you click the Windows button, you can see tiles with different applications, all of your apps in the form of tiles you can distribute according to your own taste, and power button where you can choose whether you want to shut down your computer, put it to sleep, or log out.
Look in for setting under system settings, that should show what software and firmware version you are on.