Which of the following is not for a parallelogram 1. consecutive angles are supplementary
2. sum of interior angles is 360
3. opposite angles are supplementary
4. none of the above

here you hope this .

step-by-step explanation:

hypotenuse = √(15² + 8²)

=  √(225 +64)

=  √(289) = 17

sin(x) = cos(y) = 8/17

they are identical so long as you are doing the sine of one angle and the cosine of the only other angle that isn't the right angle.

i did it myself and i got 4.2 (b) hope its right

step-by-step explanation: