Quadrilateral abcd has congruent angles and opposite sides that are congruent. what classification can be given to abcd?
parallelogram
rectangle
rhombus
square

I think is rectangle, because it said that ABCD has congruent angles and opposite sides that are congruent

Rectangle

Step-by-step explanation:

Remember that all the interior angles of a quadrilateral has a sum of 360 degrees. If 4 angles are congruent so each one is: 360/4 = 90 degrees

=> it must be a rectangle or square

It means that not 4 sides are congruent so it is a square  

At the end, Quadrilateral ABCD is a rectangle

Hope it will find you well.

6(h+1)/2=a

a=area

step-by-step explanation:

its the same thing as a square or rectangle but after multiplying two sides you need to divide it by two.