Answer:
m∠DEF is 90°
Step-by-step explanation:
It is given that D(5, 7), E(4, 3), and F(8, 2) form the vertices of a triangle. Thus, using the distance formula, we have
⇒
⇒
and
⇒
⇒
Also,
⇒
⇒
Now,
⇒
⇒
Thus, Pythagoras theorem holds.
Hence, m∠DEF is 90°⇒ΔDEF is right angled triangle which is right angled at E.
DE^2 = 1 + 16 = 17.
EF^2 = 16 + 1 = 17.
DF^2 = 9 + 25 = 34.
Since (DE)^2 + (EF)^2 = (DF)^2,
angle E is 90 degrees.
DF must be the hypotenuse
Here look at that
Type your answer below (do not include units). If your
answer is a decimal, round it to the nearest
thousandth.
PLEASE ANSWER ASAP! NEED FOR RIGHT NOW
Answer:
The length would be 3
Step-by-step explanation:
length x width x height = 27
3 x 3 x 3 = 27
Answer:
3.45
Step-by-step explanation:
23*15%=3.45
0.168
5.95
11.682
16.8
(if you could explain how to do this it would really help)
Answer: the answer is 16.8
Step-by-step explanation: if you simplify you get 10.08 and 0.6
then if you do process of elimination to weed out the non answers by multiplying each option by 0.6 to find the one that equals 10.08 you get 16.8
0.6 x 16.8 = 10.08