Question

question 1
find the perimeter and area of a rectangle of cardboard measuring 17.6 cm by 18.7 cm
perimeter:
cm
area:
cm²
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Explanation:

Step1: Calculate rectangle perimeter

Perimeter formula: $P = 2(l + w)$
Substitute $l=18.7$, $w=17.6$:
$P = 2(18.7 + 17.6) = 2(36.3) = 72.6$

Step2: Calculate rectangle area

Area formula: $A = l \times w$
Substitute $l=18.7$, $w=17.6$:
$A = 18.7 \times 17.6 = 329.12$

Answer:

Perimeter: $72.6$ cm
Area: $329.12$ cm²