Find the surface area of the composite object below. Round your answer to the nearest hundredth (i. e. 2 decimal places).

Step-by-step explanation:

area of triangular endface = ½×6×8 = 24 cm²

area of rectangular endface = 4×8 = 32 cm²

area of each endface = 24+32 = 56 cm²

area of each 3×10 face = 30 cm²

area of 3×4 face = 12 cm²

area of base = 8×3 = 24 cm²

surface area = 2×56 + 2×30 + 12 + 24 = 208 cm²

step-by-step explanation:

f

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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