l a t er a l a re a i s : 2 rec t an g l es 5 in × 15 in an d 2 rec t an g l es 4 in × 15 in l a t er a l a re a o f t h e rec t an gu l a r p r i s m : 2 ⋅ 5 ⋅ 15 + 2 ⋅ 4 ⋅ 15 = 150 + 120 = 270 ( i n 2 ) A n s w er : B
The lateral area of a rectangular prism can be calculated using the formula 2 h ( l + w ) . For the dimensions provided (height of 15 in, length of 5 in, width of 4 in), the lateral area is 270 in 2 .
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