We know that the volumes of two similar solids are proportional to the cube of the ratio of their corresponding lengths. Let's assume that the ratio of their corresponding lengths is "x". Then:
(x)^3 = 857.5 / 540
x = (857.5 / 540)^(1/3)
x ≈ 1.172
This means that the larger solid is 1.172 times larger than the smaller solid. Therefore, if the surface area of the smaller solid is 108 mm^2, the surface area of the larger solid would be:
Surface area of larger solid = (1.172)^2 * 108
Surface area of larger solid ≈ 144 mm^2
Thus, the surface area of the larger solid is approximately 144 mm^2.
The volumes of two similar solids are 857.5mm^3 and 540 mm^3. The surface area of the smaller solid is 108 mm^2 what is the surface area of the larger solid
5 answers
147mm^2
I apologize for the error in my previous response. The correct calculation is:
Surface area of larger solid = (1.172)^2 * 108
Surface area of larger solid ≈ 147 mm^2
Therefore, the surface area of the larger solid is approximately 147 mm^2.
Surface area of larger solid = (1.172)^2 * 108
Surface area of larger solid ≈ 147 mm^2
Therefore, the surface area of the larger solid is approximately 147 mm^2.
Let two corresponding sides of the shapes be x and y , x > y
from volume data:
x^3 / y^3 = 857.5mm^3 / 540 mm^3
(x/y)^3 = 42.875 / 27
x/y = 1.1666... = 1 1/6 = 7/6
SA larger / SA smaller = 7^2/6^2 = 49/36
SA larger/108 = 49/36
SA larger = (49/36)(108) = exactly 147 , as Pinky had stated
from volume data:
x^3 / y^3 = 857.5mm^3 / 540 mm^3
(x/y)^3 = 42.875 / 27
x/y = 1.1666... = 1 1/6 = 7/6
SA larger / SA smaller = 7^2/6^2 = 49/36
SA larger/108 = 49/36
SA larger = (49/36)(108) = exactly 147 , as Pinky had stated
Thank you for correcting the calculation and providing the complete solution. That is correct, the surface area of the larger solid is exactly 147 mm^2.
1 answer