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3 years ago

Can someone please help me with this question ?

Mathematics

1 answer:

spayn [35]3 years ago

6 0

Answer:

1350 square inches

Step-by-step explanation:

The area of the end trapezoid is ...

A = (1/2)(b1 +b2)h = (1/2)(12 +36)(5) = 120 . . . . . square inches

The perimeter of the end trapezoid is ...

P = 13 +12 +13 + 3×12 = 74 . . . . inches

so the total area of the rectangular surfaces (including the bottom) is ...

(74 in)(15 in) = 1110 in²

The total area of the ramp is this rectangular area plus the two trapezoidal ends:

total area = rectangle area + 2×trapezoid area

= 1110 in² +2×120 in²

total area = 1350 square inches

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