Question

The size of an envelope is 25cm by 7cm.The size of a square stamp is 5cm by 5cm pasted on the envelope.Find the area of the envelope not covered with the stamp?​

Answer 1

Answer:

area = 150 cm²

Step-by-step explanation:

Shape of envelope = rectangle

shape of stamp = square

we know that,

area of rectangle = l × b

= 25 × 7

= 175 cm²

we know that,

area of square = side × side

= 5 ×5

= 25 cm²

Area not covered with stamp = ar of envelope- ar of stamp

= 175 - 25

= 150 cm²

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Answer 2

Answer:

150 cm

Step-by-step explanation:

• $the \: area \: of \: envlop \: is \: l \times b \\ then \: 25 \times 7 = 175 \\ and \: area \: of \: samp \: is \: = side {}^{2} \\ \: 5 \times 5 = 25 \\ \: the \: area \: of \: th e \: envelope \: not \: covered \: with \: stamp \: is = \: the \: area \: of \: envelope \: - area \: of \: stamp \\ \: so175 - 25 = 150cm \\ i \: hope \: it \\: will \: help \: you \:$
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