Given: AB || DC ∠A ≅ ∠D

Prove: ΔABC ≅ ΔDCB

Triangles A B C and D C B share common side C B. Angles C D B and C A B are congruent. Sides C D and A B are parallel.
Isabelle proves that the triangles are congruent by using the parallel lines to determine a second set of angles are congruent. What statement and reason could she have used?

∠ABC ≅ ∠BAC; corresponding angles of parallel lines are congruent.
∠CAB ≅ ∠DCB; alternate interior angles of parallel lines are congruent
∠ABC ≅ ∠DCB; alternate interior angles of parallel lines are congruent
∠ACD ≅ ∠ABD; corresponding angles of parallel lines are congruent.

you should at least use a calculater

step-by-step explanation:

i think there was a typo. you wrote pat brings 3 quarts of ice-cream to the party. each serving of ice-cream is 1 6 quart. how many total servings of ice-cream does pat bring to the party? i think the bold is supposed to be 1/6. so 1 quart of ice cream = 6 servings. 6 * 3 = 18.

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.