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IgorLugansk [536]
2 years ago
14

RAMP 21.7 ft 8.5 ft 12 ft 20 ft 1. What is the total surface area of the ramp?

Mathematics
2 answers:
krok68 [10]2 years ago
4 0

Answer:

772.4 ft^2

Step-by-step explanation: pls mark brainliest :)

castortr0y [4]2 years ago
3 0

Answer:

772.4 ft^2

Step-by-step explanation:

find the area of each face. first the slanted rectangle. the dimensions of the slanted rectangle are 21.7ft by 12ft. so the area is 21.7*12=260.4ft^2. for the two triangles on the sides, each on has an area of 20*8.5/2=85. next for the smaller rectangle, the dimensions are 12ft by 8.5ft giving us an area of 102 ft^2. lastly for the base, it has dimensions of 20ft by 12ft giving us an area of 240ft^2. now you just add up all the areas: 260.4+85+85+102+240=772.4 (you might want to check my addition just in case)

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