Here are six numbers cards arrange the cards into 3pairs with the same total

The pairs come out to a sum of 4.

Step-by-step explanation:

-4 and 8 = 4

-2 and 6 = 4

-1 and 5 = 4

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

rectangle: 9 1/8 x 4 1/9 = 37 37/72in

parallelogram: b times h= 10.3 x 6.2 = 63.86

trapezoid: a+b/2 times h= 42.5

volume of prism: l times w times h= 36