Use a protracter :) hope this helps!
H = 2sqrt2
D = 6sqrt3
In a 45,45,90 triangle the hypotenuse is (x)sqrt2 while the side lengths are equivalent being a single value x. Therefore, when given the hypotenuse and solving for the leg, divide 4 by sqrt2 to get 4sqrt2/2 which simplifies to 2sqrt2 when the denominator and numerator cancel.
In a 30,60,90 triangle the short leg x is across from the 30 degree angle meaning the angle across from the 60 degree angle is x times the sqrt of 3. Therefore the long leg is 6sqrt3
Hello,
In the picture, i have draw one translation 
and a line symmetry 
You have just to follow the colors.
Answer:
76ft^2
Step-by-step explanation:
do 18xpi to get the area
you get 57
it says every 3 cm is four ft so divide 57 by 3
you get 19 thats how many 4ft there are
then do 19x4 because thats how much each 3cm is in ft
you get 76
and since its area its ft^2