Answer:
Perimeter is 17.07
Step-by-step explanation:
We know that DF = EF = 5 cm, since D and E are the midpoints of AC and AB, both of which are 10 cm in length.
We need to use the Pythagorean theorem to get the length of DE.
So the perimeter of DEF is 5 + 5 + 7.07 = 17.07
Answer:
circumfrence = 2 x pi x r
C = 2 x 3.14 x 3
C = 18.84 feet
Don't agree with Conclusion.
Mistake was he didn't multiply by pi (3.14)
Step-by-step explanation:
To work out the circumference of a circle, you should use 2πr or πd (r being radius and d being diameter)
So
Circumference = 13.5 x π = 27/2 π = 42.41 inches
Answer: -4/5
Step-by-step explanation:
you can use slope formula to solve this question. （Y1-Y2）/（X1-X2）. So the answer to this question should be （0-4）/（5-0）= -4/5
