Midline Theorem Quiz

1. In ∆SIE, L and D are the midpoints of SI and IE respectively. If LD is 12, then what is the value of SE?

• a. SE = 48

• b. SE = 6

• c. SE = 24

• d. SE = 12

2.  In ∆SIE, L and D are the midpoints of SI and IE respectively. If SE = 14, then what is the value of LD?

• a. LD = 28

• b. LD = 7

• c. LD = 14

• d. LD = 21

3. In ∆SIE, L and D are the midpoints of SI and IE respectively. If LI = 18, what is the value of LS?

• a. LS = 27

• b. LS = 36

• c. LS = 9

• d. LS = 18

4. In ∆VES, I and W are the midpoints of VE and ES respectively. If IW = 3x + 7 and VS = 26, find the value of x.

• a. x = 4

• b. x = 3

• c. x = 2

• d. x = 6

5. In ∆BNS, O and U are the midpoints of BN and NS respectively. List the congruent sides.

6. Identify if this statement is TRUE or FALSE.

OU=BS

• a. TRUE

• b. FALSE

7. Identify if this statement is TRUE or FALSE.

“In a parallelogram any two opposite sides are congruent.”

• a. TRUE

• b. FALSE

8. If two sides of a quadrilateral are ____________ and ____________, then the quadrilateral is a parallelogram.

• a. parallel but not congruent

• b. parallel and congruent

• c. congruent but not parallel

• d. not parallel and not congruent

9. If DC= 20 then DE= ____?

• a. DE=5

• b. DE=10

• c. DE=15

• d. DE=20

10. IF BD= 13, then AE= ____?

• a. AE=13

• b. AE=26

• c. 36

• d. 52