Which expressions will help you find the surface area of this net? Select all that apply. 9 × 6

4 × 9

9 × 5

1/2 x 4x6

Because the surface area is rectangle and the area of rectangle is length × width

length = 9

width = 6.

so 9×6

step-by-step explanation:

b and c

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet