The figure represents a water trough in the shape of a rectangular prism. The dimensions of the water trough are given in feet. Water Troughfour feettwo and one over 2 feet7 feet

What is the volume of water in the trough in cubic feet when the trough is full?
twenty one... and ...one over two feet cubed
thirteen...and...one..over..two... feet...cubed
Seventy...feet...cubed
seventy-sixfeet...cubed

you need to rotate this triangle about the origin 270 degrees clockwise to create the full square.

11) obtuse

13)right

15) acute

if i did my math right then the answer should but 108

secant-secant formula:

(whole secant) x (external part) =           (whole secant) x (external part)

(8+y-2) *8=                                           (y+4+6) *6

(y+6)*8 = (y+10) *6

distribute

8y+48 = 6y +60

subtract 6y from each side

2y +48 = 60

subtract 48 from each side

2y = 12

divide by 2

y = 6

sv =     (y+4+6)

sv   = 6+4+6

sv = 16