Answer:
Um you didnt attach a file or anything make one again and ill answer it just attach a screenshot of the problem
Step-by-step explanation:
Answer:
17
Step-by-step explanation:
The picture in the attached figure
the question is
What is the surface area of the ramp?
we know that
surface area=2*[(36+12)*5/2]+2*[15*13]+[12*15]+[36*15]
surface area=240+390+180+540
surface area=1350 in²
the answer is1350 in²
Well, a Centimeter is 10 times bigger than a Milimeter.
So we can convert 9cm by multiplying it by 10
9 × 10= 90mm
SInce we know the length and width of the rectangle, we can now find the area of it, or "the space inside".
Area = length × width
Area = 90mm × 81mm
Area = 7290mm