The length and breadth of a rectangle is 10cm and 8cm. The perimeter of rectangle is………
Answers
Step-by-step explanation:
Length of the rectangle = 10 cm
-------------------------------------------------------------------------
Breadth of the rectangle = 8 cm
------------------------------------------------------------------------
(i) When they are doubled,
⇢l = 10 × 2 = 20 cm
⇢b = 8 × 2 = 16 cm
Perimeter = 2(l + b)
= 2(20 + 16)
= 2 × 36
= 72 cm
(ii) When they are halved,
⇢l = 10/2 = 5 cm
⇢b = 8/2 = 4 cm
Perimeter = 2(l + b)
= 2(5 + 4)
= 2 × 9
= 18 cm
------------------------------------------------------------------>
Additional Information:
Here,
L is used for Length.
B is used for Breadth.
What is Perimeter?
The the length of the boundary of a closed figure is called the perimeter.
Answer:
36cm
Step-by-step explanation:
length -10cm
breath-8cm
perimeter of rectangle--2(l+b)
=2(10+8)
=2×18
=36cm