What is the surface area of this picture

310 cm^2 (Don't ever forget the units) for the full surface area

STEP BY STEP:

I'll give you the area of the full thing.

First we will get the little square on the one side:

5 x 4 = 20

We got one side out of 8 sides.

Side 2:

10 - 5 = 5

5 x 4 = 20

Side 3:

5 x 4 = 20

Side 4:

5 x 4 = 20

Side 5:

5 + 5 = 10

10 x 4 = 40

Side 6:

5 + 5 = 10

10 x 4 = 40

Side 7:

10 - 5 = 5

5 x 5 = 25

5 x 5 = 25

5 x 5 = 25

25 + 25 + 25 = 75

Side 8:

10 - 5 = 5

5 x 5 = 25

5 x 5 = 25

5 x 5 = 25

25 + 25 + 25 = 75

ADD ALL SIDES TOGETHER:

75 + 75+ 40 + 40 + 20 + 20 + 20 + 20 = 310

last option: rhombus or kite

step-by-step explanation:

a kite and rhombus have the same shape. as we don't have any specific formula for the calculation of area of kite. the diagonals are used to calculate the area of a kite or rhombus.

the formula for area of rhombus is given by:

here, d_1 is the first diagonal and d_2 is the second diagonal.

so,

last option is the correct answer ..

d. all of the above

step-by-step explanation: