B is the mid-point of .
AB = BC ……….(i)
And C is the mid-point of .
BC = CD ……….(ii)
From eq. (i) and (ii),
AB = CD
Angle | Measure | Type |
---|---|---|
\(∠AOB\) | ||
\(∠AOC\) | ||
\(∠BOC\) | ||
\(∠DOC \) | ||
\(∠DOA\) | ||
\(∠DOB\) |
Object | Material |
Book | Glass |
Tumbler | Wood |
Chair | Paper |
Toy | Leather |
Shoes | Plastics |