Answer:
let the width be x inches
then the length would be 3x inches
perimeter of rectangle = p = 2(l+b)
100= 2(3x+x)
100= 2(4x)
100=8x
x=100/8
x=12.5 inches
thw width is 12.5 inches and length is 3*12.5=37.5 inches
Step-by-step explanation:
Answer:
She is incorrect. The correct answer is 285.74
Step-by-step explanation:
A= (pi)r^2
Training wheel: A= (3.14)(3)^2=28.26in^2
Wheel: A= (3.14)(10)^2= 314in^2
314-28.26=285.74in^2

<u>Given</u><u> </u><u>2</u><u> </u><u>right</u><u> </u><u>angles</u><u>,</u><u> </u><u>are</u><u> </u><u>always</u><u> </u><u>supplementary</u><u> </u><u>and</u><u> </u><u>congruent</u>
13.33 is the correct answer