Which weighs more 2.5 pounds of rocks or 40 ounces of feathers

What is the first step of an indirect proof of a number that is divisible by two

Select the lengths in centimeters that would form a right triangle

1. 2. ∠b and ∠y are right angles. 3.? 4.? which two statements are missing in steps 3 and 4? ∠x ≅ ∠c △abc ~ △zyx by the sas similarity theorem. ∠b ≅ ∠y △abc ~ △zyx by the sas similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem. = 2 △abc ~ △zyx by the sss similarity theorem.