8 in 10 in
8 in
10 in
10 in
8 in
10 in
8 in
10 in
8 in
10 in
What is the surface area of the solid?
O A. 220 square inches
O B. 260 square inches
O c. 210 square inches
D. 420 square inches
SUBMIT

Step-by-step explanation:

Surface area of the 4 sided pyramid  = base area + 4 time each triangle area

                     = (s²)  + 4 × 1/2(b)(h)

                     = (10)(10)  + 4 × (1/2)(10)(8)

                     = 100 +  4(1/2)(10)(8)

                     = 100 + 160

                     = 260

260 square inches

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.

step-by-step explanation: