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Ex 12.1

Ex 12.1, 1

Ex 12.1, 2 Important

Ex 12.1, 3

Ex 12.1, 4 Important

Ex 12.1, 5 Important You are here

Ex 12.1, 6 (a)

Ex 12.1, 6 (b) Important

Ex 12.1, 6 (c)

Ex 12.1, 6 (d) Important

Ex 12.1, 7 (a) Important

Ex 12.1, 7 (b)

Ex 12.1, 7 (c) Important

Ex 12.1, 7 (d) Important

Ex 12.1, 8

Ex 12.1, 9

Ex 12.1, 10 Important

Ex 12.1, 11

Ex 12.1, 12 Important

Ex 12.1, 13 Important

Ex 12.1, 14

Ex 12.1, 15 Important

Ex 12.1, 16 Important

Last updated at March 16, 2023 by Teachoo

Ex 12.1, 5 Fill in the following blanks: 15/18 = ⎕/6 = 10/⎕ = ⎕/30 [Are these equivalent ratios?] 15/18 = "⎕" /6 15 × 6 ="⎕"× 18 "⎕"× 18 = 15 × 6 "⎕"= (15 × 6)/18 "⎕" = 15/3 "⎕"= 5 15/18 = 10/"⎕" 15 ×"⎕"= 10 × 18 "⎕"= (10 × 18)/15 "⎕"= (2 × 18)/3 "⎕"= 2 × 6 "⎕"= 12 15/18 = "⎕" /30 15 × 30 ="⎕"× 18 "⎕"× 18 = 15 × 30 "⎕"= (15 × 30)/18 "⎕"= (5 × 30)/6 "⎕"= 5 × 5 "⎕" = 25 Thus, 15/18 = ▭𝟓/6 = 10/▭𝟏𝟐 = ▭𝟐𝟓/30 Since all the ratios are same ∴ Yes, all these are equivalent ratios