Question

In ΔABC, if m ∠A = m∠C, m∠B = ß (where ß is an acute angle), and BC = x, which expression gives the length of b, the side opposite ∠B ?

Answer 1

draw wit one a piece a paper and match the angles to each other and the ones that are the same size are not right this trick works like a charm:)

Answer 2

but it dont give me corridnates tho

Answer 3

x2−2x2cosβ−−−−−−−−−−−√

x2−(1−cosβ)−−−−−−−−−−−−−√

2x2−(1−cosβ)2−−−−−−−−−−−−−−√

2x2−(1−cosβ)−−−−−−−−−−−−−−√

these are the answer

Answer 4

ok never mind on them

Answer 5

whats the answer??