Official Answer
Answer
'Shingling' kan uumamu burqaawwan dalgee garagalcha hedduu qaban keessatti yeroo dalgaleen garagalcha walitti aananii jiran qaxxaamuraa irraa gara fiixeetti hafuu dhiisanii wal irra siqaniidha. Kun kan ta’u yeroo baay’ee kan ta’u sababni isaas ispiriingichi shaafta ykn booriin sirnaan waan hin qajeelfamneef, ykn dallaan raadiyaalii $b$ olka’iinsa dalgee wajjin walqabatee garmalee haphii waan ta’eef. Shingling erga uumamee booda, saffisi birraa battalumatti dachaa ykn sadii ta’a, kana booda birraan olka’iinsa hojii dizaayinii isaa gahuu hin danda’u. Qorannoo salphaadha: springichi yeroo diigamu 'telescoped' ykn garagalfamee ni mul'ata. Sirreeffamni kun dallaa raadiyaalii guddisuu ykn obsa qajeelfama fooyyessuu of keessaa qaba.
