Aisha changed 1.45+2.38 to 1.5 + 2.3 in order to estimate the sum.what estimation method did she use?
1 answer:
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Answer: 64 feet.
Explanation:
Perimeter formula: 2l + 2w
Area formula: l•w
Length = 3w
Area = 192 ft
192 = (3w) • w
192 = 3
192 ÷ 3 = 3 ÷ 3
64 =
= 
8 = w
Width = 8
Length = 3(8) = 24
Perimeter = 2(24) + 2(8) = 64 feet.
Explanation:
Perimeter formula: 2l + 2w
Area formula: l•w
Length = 3w
Area = 192 ft
192 = (3w) • w
192 = 3
192 ÷ 3 = 3
64 =
8 = w
Width = 8
Length = 3(8) = 24
Perimeter = 2(24) + 2(8) = 64 feet.