4 congruent sides
not a triangle or trapezoid or rectangle
answer is square
D is answer
(technically, all squares are rectangles, but not all rectangles are squares, so rectangle is sometimes true)
D is answer
Answer:
9a2b2=4c2
the 2s mean squared btw
Step-by-step explanation:
Step 1: Start with the following:
(a + b + c)(d + e)
Step 2: Distribute (d + e) to each of the term in the first parenthesis
a(d + e) + b(d + e) + c(d + e)
Step 3: Distribute d and e to each term:
(ad + ae) + (bd + be) + (cd + ce)
or ad + ae + bd + be + cd + ce without the parentheses.
Step 4: Finally, simplify.
Choice A is correct! -2> -2.5
