Length of a rectangle of 15 cm, and width is a third a part it are long. Draw this rectangle. Find its perimeter and the area

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Time length 15 well a zhna width we look for width 15÷3 equally in the 5th width in perimeter (and + b) · 2 (15+5) ×2 equally in 40th Square а×б 15 × 5 75 Length 10 cm and width of 5 cm will be equal
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Answer add