To answer this problem you have to use a ratio, if it begins with 8:500, multiply 40 or 20,000/500 on both sides to get 320:20,000
The correct answer is A - rhombus and square.
B is incorrect because a parallelogram doesn't necessarily have congruent sides, it just has sides that are parallel.
C is incorrect because a rectangle has a pair of sides longer than the other pair of sides.
D is wrong because of the reason listed under C.
Hope this helps.
15 because The value of CB=CA
And CB=CA because the there are 2 dashes on the lines, which mean they are equal
This might be a little confusing, hope this helps :D
18 is the answer im pretty sure if its wrong im sorry