Answer:
$< abc = < ebc \\ < acb = < ecd \\ if \: two \: angles \: in \: the \:two \: different \: triangles \: are \: equal \: then \: the \: third \: angle \: in \: the \: triangle\: must \: be \: equal. \\ using \: pythogres \: theorum \\ ab = \sqrt( ac ^{2} - bc^{2} )\\ = \sqrt (15 ^{2} - 12 ^{2}) \\ = \sqrt( 225 - 144 )\\ = \sqrt(81) \\ ab = 9 \\ sides \: of \: similar \: triangle \: are \: propotional \\ ac \div ec = dc \div bc \\ 15 \div x = 12 \div 6\\ x = 15 \times 6\div 12\\ x = 15 \div 2 \\ x = 7.5 \\ so \: ec \: = 7.5 \\ you \: can \: check \: this \: by \: applying \: pythogores \: theorum. \\ i \: hope \: this \: helps$

8 0

3 years ago

Which angles are congruent to each other?

Nikolay [14]

Answer:

The angles that are congruent due to being vertical angles are:

m∠2 and m∠4

m∠1 and m∠3

m∠8 and m∠6

m∠5 and m∠7

6 0

3 years ago

Lindsay is very excited to be getting a great deal on an iPad it was originally $500 but she will only be paying $325 what perce

Umnica [9.8K]

The answer you seek you just need to take 325 and divide it by 500 to get .65 and change .65 to 65%. And to make sure you multiply 500 by .65 to get 325.
Hope I helped

7 0

4 years ago

How do you solve this question?

Setler [38]

Find out what the variable.

7 0

4 years ago