Answer:

Step-by-step explanation:


a square is made up of 2 congruent right triangles with the same leg length. we use the Pythagorean theorem to find the length of one of these legs. a^2+b^2=c^2, but we know that the legs are equal in length, so we have 2a^2=(3rad2)^2
2a^2=9*2
a^2=9
a=3
square is made up of 4 of these, so 4*3=12
the perimeter is 12
Answer:
therefore carlos walks much faster.
Explanation:
unit rate for carlos:



mi/h
unit rate for lucy:



mi/h
Answer:
Step-by-step explanation:
1 hr=60 min
1 km=0.62137 miles
15 km/min=(15×60) km/hr=900 km/hr=(900×0.62137) miles /hr=559.233 miles/hr
D
Volume= length x width x height
5 x 5 = 25
25 x 10 = 250
Volume= 250 inches ^3