Question

please answer class 5 maths​

Answer 1

Answer:

Solution–

Solve it by applying the formulae.

Step-by-step explanation:

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Answer 2

1 .a)

$area \: of \: rectangle \: = \: l \times b$

Given — l = 7cm , b = 3 cm

Therefore,

$7 cm \times 3cm \\ = 21cm$

Answer= 21cm..