Since we formed our new orbitals from one s-orbital and one p-orbital, right? this is called sp-hybridization. so sp hybri-di-zation, like that. and when you see a triple bond present, right? you know that this carbon on the left is sp-hybridized and the carbon atom on the right is also sp-hybridized. so we have our new sp-hybrid orbitals which must therefore have 50% s-character right? and 50% p-character. so the shape of sp-hybrid orbital is going to look a little bit more like 