step-by-step explanation:
this is not a question
the area of ​​the surface of the rectangular prism here is 250 cm2, which is the surface of the shading
question
given the diagram below, what is md?
the sum of the interior angles is 360°
take away from 360 the sum of the knows angles and you will have the angle d.
360 - 108 - 108 - 72 = 72°
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