Sydney is cutting the crust from the edges of her sandwich. the dimensions, in centimeters, of the sandwich is shown. which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust? a) 8x2 + 34; 43.6 centimeters b) 8x2 + 34; 45.52 centimeters c) 4x2 + 17; 21.8 centimeters d) 4x2 + 17; 22.76 centimeters

Option b) 8x²+34; 45.52 centimeters

Step-by-step explanation:

Length of the sandwich is = 2x²+8 centimeters

Breadth of the sandwich = 2x²+9 centimeters

Therefore total perimeter of the sandwich = 2(length + breadth)

                                         = 2 (2x²+8+2x²+9) centimeters

                                         = 2( 4x²+17) centimeters

                                         = (8x² +34) centimeters

If x = 1.2 then perimeter of the sandwich =

                                                                   = 2(4×1.44+17) = 2(5.76+17)

                                                                   = 2×22.76 = 45.52 centimeters

So the answer is option b) 8x²+34; 45.52 centimeters

complete the steps to find the area of the trapezoid.

area of rectangle = 256   square units

area of triangle 1 = 24  square units

area of triangle 2 = 16  square units

area of triangle 3 =   96 square units

area of trapezoid = 120  square units

step-by-step explanation:

false

step-by-step explanation:

false.   two legs of the trapezoid would be congruent, but the other two would not.   were all the legs congruent, then we'd have a square; were the 2 shorter sides congruent and the 2 longer sides also congruent, we'd have a rectangle.