Answer:
∠CDF= 70°
Step-by-step explanation:
there's an easier way to do this which is adding the angles ∠EDG and ∠GDF and then subtracting that from 180° but, checking your work in the same process is a little more work.
First, I'd like to find ∠ADB.
- 85°+70°= 155°
- 180°-155°= 25°
- ∠ADB= 25°
Second, add all the angles together.
- 70°+50°+60°+85°+25°= 290°
- 360°-290°= 70°
The answer is B. 25
300 divided by 12 = 25.
please edit your question man
Remove parentheses
3m - 7m+12 = 2 m-3
collect like terms
3m-7m-12 = 2m-6
move terms
-4m - 12 = 2m-6
collect the like terms and calculate
-4m-2m = -6+12
divide both sides by -6
-6m=6
m= -1
Answer:
51 cm
Step-by-step explanation:
perimeter = 2 * length + 2 * width
226 = 2 * 62 + 2 * width
226 = 124 + 2 * width
226 - 124 = 2 * width
102 = 2 * width
102/2 = width
51 = width
