In tetraedul abcd toate cele 6 muchii sunt congruente. inaltimea tetraedului este do punctul m este proiectia punctului o pe muchia db si mc=2radical7 cm aratati ca ab= 6cm

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?

|p| > 3 {-3, 3} {p|-3 < p < 3} {p|p < -3 or p > 3}

Josie buys a pair of boots that retail for $52.00 dollars, however they are currently on sale for 25% off how much does josie pay for the boots if there is also a 6% sales tax on them