Example 1
| Statement | Reason |
| 1. ∠B ≅ ∠K | ? |
Example 2
| Statement | Reason |
| 1. ∠B ≅ ∠K | Given (in figure) |
| 2. ∠BIR ≅ ∠KIC | ? |
Example 3
| Statement | Reason |
| 1. ∠B ≅ ∠K | Given (in figure) |
| 2. ∠BIR ≅ ∠KIC | Vertical angles theorem |
| 3. ∆BRI ~ ∆KCI | ? |
Example 4
| Statement | Reason |
| 1. A is the midpoint of BK, S is the midpoint of BT, and E is the midpoint of KT | Given |
2. ![]() | Triangle Midsegment Theorem (1) |
Example 5
| Statement | Reason |
| 1. A is the midpoint of BK, S is the midpoint of BT, and E is the midpoint of KT | Given |
2. ![]() | Triangle Midsegment Theorem (1) |
3. ![]() | ? |
Example 6
| Statement | Reason |
| 1. A is the midpoint of BK, S is the midpoint of BT, and E is the midpoint of KT | Given |
2. ![]() | Triangle Midsegment Theorem (1) |
3. ![]() | Triangle Midsegment Theorem (1) |
| 4. SE = ? | Triangle Midsegment Theorem (1) |
Example 7
| Statement | Reason |
| 1. A is the midpoint of BK, S is the midpoint of BT, and E is the midpoint of KT | Given |
2. ![]() | Triangle Midsegment Theorem (1) |
3. ![]() | Triangle Midsegment Theorem (1) |
4. ![]() | Triangle Midsegment Theorem (1) |
5. ![]() | Statements 2, 3, 4 |
| 6. ∆BKT ~ ∆ESA | ? |
Example 8
| Statement | Reason |
| 1. QT || US | Given |
2. ![]() | ? |
Example 9
| Statement | Reason |
| 1. QT || US | Given |
2. ![]() | Triangle Proportionality Theorem |
| 3. ? | Reflexive Property |
Example 10
| Statement | Reason |
| 1. QT || US | Given |
2. ![]() | Triangle Proportionality Theorem |
| 3. ∠QET ≅ ∠UES | Reflexive Property |
| 4. ∆ QET ~ ∆UES | ? |
















