Question

Answer three questions
every question contains 10 marks
Please answer them fast
Maths question

Answer 1

Q.3) GIVEN - LENGTH OF CARDBOARD= 8 CM
               BREADTH OF CARDBOARD= 5 CM
               BREADTH OF MARGIN = 1.5 CM
TO FIND-TOTAL AREA OF MARGIN
SOLUTION-WE KNOW THAT,
                       AREA OF RECTANGLE=L×B
                 ∴AREA OF MARGIN=LENGTH OF CARDBOARD×BREADTH OF MARGIN
                ∴AREA OF MARGIN=8×1.5
                                                 =13.0 CM²
                                                 =13 CM²
        AS THE MARGIN IS ON FOUR SIDES OF THE PICTURE , WE WILL MULTIPLY THE AREA OF MARGIN BY 4.
                ∴AREA OF TOTAL MARGIN=13×4
                                                             =52 CM²