The study looked at how rocks with different angles of cracks behave under pressure. They found that rocks with cracks at certain angles break differently than those with cracks at other angles. As the crack angle increases, the strength of the rock decreases, but the remaining strength after breaking increases. The way the rock deforms also changes with the crack angle. This research helps us understand how rocks with cracks behave when they are squeezed, which can be useful for predicting how they might break in real-life situations.