Recent content by Egypt Jene

The rectangular box shown in the figure has dimensions 12' x 7' x 4' (L x W x H). Approximate, to the nearest tenth, the angle A formed by a diagonal of the base and a diagonal of the 7' x 4' (W x H) side. The answer that i got was 80.9734 which rounds to 81.0 and the hw progran that we use is...