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10-Similar Solids - Kuta Software

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-1-<br />

©u Q290v1321 OKGuktjap 5SfoWfotbwsaFrNeY tLyLHCy.1 T CAQlNlB Xr3iTgThvtas5 Cr pels4eOrfvee9dH.0 O FMsaBdfe9 AwliItuh1 cI7nSfGiYnDiJtLeu wGCeQo4mIeDtSroyO.O Worksheet by <strong>Kuta</strong> <strong>Software</strong> LLC<br />

<strong>Kuta</strong> <strong>Software</strong> - Infinite Geometry<br />

Name___________________________________<br />

<strong>Similar</strong> <strong>Solids</strong><br />

Are the two figures similar? If so, state the scale factor.<br />

Date________________ Period____<br />

1)<br />

2)<br />

12 ft<br />

40 ft<br />

40 m<br />

8 m<br />

24 ft 18 ft<br />

Yes; 3 : <strong>10</strong><br />

80 ft<br />

60 ft<br />

No<br />

50 m<br />

20 m<br />

3)<br />

27 km<br />

81 km<br />

4)<br />

18 cm<br />

54 cm<br />

18 km<br />

6 cm<br />

54 km<br />

21 cm<br />

Yes; 1 : 3<br />

No<br />

Each pair of figures is similar. Use the information given to find the scale factor of the figure on the left<br />

to the figure on the right.<br />

5)<br />

6)<br />

SA = 396 cm²<br />

SA = 275 cm²<br />

SA = 7π in²<br />

SA = 175π in²<br />

6 : 5<br />

1 : 5<br />

7)<br />

8)<br />

V = 20000 mi³<br />

5 : 4<br />

V = <strong>10</strong>240 mi³<br />

V = 3240 in³<br />

3 : 1<br />

V = 120 in³

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