Question

Please answer this!!

Answer 1

Answer: Choice D. 6.8

Explanation:

45,45,90 triangles, memorize that the short sides are equal to each other in length and are
`(1)/(√(2) )` the length of the long side.

Answer 2

BC = 6.8

Explanation:

Since this is a right triangle, we can use trig functions

tan theta =opp /adj

tan C = AB / BC

tan 45 = 6.8/ BC

BC = 6.8 / tan 45

BC = 6.8 / 1

BC = 6.8