Answer:

Step-by-step explanation:
we know that
To find out the area of the sidewalk, multiply the length by the width of the sidewalk
The width of the sidewalk is equal to

or

The area is equal to

Answer:
<h3>The volume of the prism is cubic

centimeters.</h3><h3>
Step-by-step explanation:</h3><h3>Given that a rectangular prism has the following dimensions:</h3><h3>

</h3><h3>We know that a rectangular prism of length 'l', width 'w' and height 'h' is given by</h3><h3>

</h3><h3>Therefore, the volume of the given prism will be</h3><h3>

</h3><h3>Thus, the volume of the prism is

cubic centimetres.</h3>
Answer:
124.5
Step-by-step explanation:
All you need to do is multiply.
15*8.3=124.5
This is because The total water in Ari's fish tank has 15 gallons, and each gallon has 8.3, so you multiply.
Answer:
∠A = ∠D (**but very important Δ ABC has to be congruent to Δ DEF)
Step-by-step explanation:
It will help if you draw the triangles out and label the same sides. Then according to the side-angle-side (SAS) rule, ∠A should be equal to ∠D