Question

in triangle ABC ZB=90*,ZC=45*,BC=a,then AC=?​..​

Answer 1

Answer:

35

Step-by-step explanation:

The Sum of inner angles of triangle =180

90+45+x=180

So x=90+45-180

=180-135=45*

Answer 2

Answer:

$\sqrt{2a {}^{2} }$

Step-by-step explanation:

AC^2 =AB^2 + BC^2

AB= BC = a

So AC = 2a^1/2