Please help me with this !!

Formula for Rectangular Prism: V =

Formula for Cylinder: V =

Formula for Triangular Prism: V =  

Step-by-step explanation:

1.) Volume of Rectangular Prism

V = lwh

V = 12(4)(10)

V = 48(10)

V = 480 m^3

2.) Volume of Cylinder

V =

V =  

V =

V =

V ≈ 703.36 cm^3

3.) Volume of Triangular Prism

V =  

V =

V = (100/2)13

V = (50)13

V = 650 mm^3

Hope this helps! Just substitute the dimensions into the formulas to answer the rest of the questions. You can do it!

there is nothing below so i cannot

step-by-step explanation:

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).