Page 299 - NUMINO_WB_6A
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104_G6U13_WB˙—» ¿º 2011.4.5 10:13 AM ˘ ` 4
104-B3-1
1. Use the proportions to find a.
a. 20 a b. 15 3
4 8 35 a
c. a 18 d. 2.5 5
16 24 8 a
e. 3.2 a f. 1.5 45
2.4 9 a 90
2. Find the unknown lengths. b.
a. Scale: 4 cm : 10 yd Scale: 5 in. : 30 m
Length in the picture: a cm Length in the picture: 25 in.
Actual length: 70 yd Actual length: a m
104-B3-1
1. Use the proportions to find a.
a. 20 a b. 15 3
4 8 35 a
c. a 18 d. 2.5 5
16 24 8 a
e. 3.2 a f. 1.5 45
2.4 9 a 90
2. Find the unknown lengths. b.
a. Scale: 4 cm : 10 yd Scale: 5 in. : 30 m
Length in the picture: a cm Length in the picture: 25 in.
Actual length: 70 yd Actual length: a m
