Anyone have any idea what the answer is? ! : )

The Answer is: a = 7

Step-by-step explanation:

The angles given are 90 and 45. This provides the measure of the third angle as well, which is 45. Add them all up to get 180 degrees, the number of degrees in a triangle.

For this triangle, a 90, 45, 45 triangle, the legs are equal length.

a = 7

the reason why your question keeps getting deleted because this is not a school related question : )

i will answer your question though.

i never tried church's

yes. we do proportions in probabilities.