9. By splitting the following figure into rectangles, find the area :
13 cm
2 cm
13 cm
5 cm
3 cm
3 cm
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9. By splitting the following figure into rectangles, find the area :
13 cm
2 cm
13 cm
5 cm
3 cm
3 cm
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Answer:
ANSWER
Let 'l' and 'b' the length and width of the rectangle respectively.
Given, b=2
4
3
cm
=
4
11
cm
and perimeter of the rectangle = 13 cm
2(l+b)=13
⇒2l+2b=13
⇒2l+2(
4
11
)=13
⇒2l+
2
11
=13
⇒2l=13−
2
11
⇒2l=
2
26−11
⇒l=
4
15
cm
∴ length of the rectangle =
4
15
cm