The measurements of some rectangles are given in the table below. However, they are
incomplete. Find the missing information
Length 20cm,18cm,15cm
Breadth 14cm,12cm,10cm
Area 280cm2,260cm2,150cm
Perimeter 68cm,60cm,50cm
with formulas and calculation class 7
Answers
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LENGTH BREADTH AREA PERIMETER
20 cm 14cm 280 cm² 68 cm
18 cm 12cm 216 cm² 60 cm
15 cm 10cm 150 cm² 50 cm
Step-by-step explanation:
Perimeter of rectangle= 2 ( Length + Breadth)
Area of rectangle= Length * breadth
20 * 14 = 280 cm²
2(20 + 14) = 68 cm
60 = 2( Length + 12) => Length = 18 cm
12 * 18 = 216 cm²
150 = 15 * breadth => breadth = 10 cm
2(15 + 10) = 50 cm
LENGTH BREADTH AREA PERIMETER
20 cm 14cm 280 cm² 68 cm
18 cm 12cm 216 cm² 60 cm
15 cm 10cm 150 cm² 50 cm
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