Given: ABCD is a rectangle. Prove: ABCD has congruent diagonals.
B
С
Statements
1. ABCD is a rectangle
1. given
2. draw AC and BD
2. unique line postulate
3. BAD and 2 CDA are right 3. def. of a rectangle
angles
4. ZBAD ZCDA
4. all right angles are
congruent
5. ABCD is a parallelogram 5. def. of a rectangle
А
Identify the steps that complete the proof.
6. AB - CD
6.4
7. AD AD
7. reflexive property
8.
8. ABAD ADCB
9.
9. BD AC

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.