Sekwere se na le likhutlo tsa likhato tse 30, 90 le tse 150. Sekhutlo sa ho qetela sa sekwere ke sefe?
Likhutlo tsohle tsa sekwere li tlameha ho ba likhato tse 90. Li-square li ke ke tsa ba le likhutlo tsa likhato tse 30 kapa tse 150