Answer:
54 or 72
Step-by-step explanation:
they are both in the range, and multiples of 9 but not 5
4
4 is cooooool
I can’t do it rn so just dm me later
Perimeter is 17.07
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