If m2DCF= 34 and m_DEF= 90, find m2 CDE.

62 Units

Step-by-step explanation:

Known-

1. CDF is 34

2. CDF=CD+CF

3. CD=CF

34/2=CD=CF

34/2 = 17

Repeat with DEF to find length.

90/2=45

CD=17

DE=45

CD+DE=CDE

17+45=62

CDE=62

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.