Find the surface area of the prism.

a). B = 24 yd²

b). h = 8 yd

c). S.A. = 240 yd²

Step-by-step explanation:

Area of the triangular base B =

=

= 24 yd²

Height of the prism 'h' = distance between the triangular bases

                                     = 8 yd

Perimeter of the triangular base = leg 1 + leg 2 + hypotenuse

                                                      = 8 + 6 + 10 = 24 yd

Surface area = 2B + Ph

                     = (2×24) + (24×8)

                     = 48 + 192

                     = 240 square yds

its the fourth option

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,