In the figure, all the corners are right-angled and the dimensions are as given in centimetres. Find, a if the perimeter of the shaded area is 1 metre.
Attachments:
Answers
Answered by
8
Answer:
Solution:-
Width is 2a+3 & the length is 3a+2
Step-by-step explanation:
The perimeter of the shaded area is = 2{(2a+3)+(3a+2)}
= 2(2a+3+3a+2)
=2(5a+5)
=2(5a+2×5)=1meter
ie 2×5a+2×5 =10a+10 = 100cm
10a = 100-10
a = 90/10➡9
Answer : a=9 //
so the length is 3a+2= 3×9+2=27+2=29cm
Similarly the width is 2a+3=2×9+3=18+3=21 cm❗
Answered by
2
Answer:
Solution:
Width is 2a+3 & the length is 3a+2
Step-by-step explanation:
The perimeter of the shaded area is = 2{(2a+3)+(3a+2)}
= 2(2a+3+3a+2)
=2(5a+5)
=2(5a+2×5)=1meter
ie 2×5a+2x5 =10a+10= 100cm
10a = 100-10
a = 90/10->9
Similar questions