Answer:
look this up on mathowl on the app store and there is ur answer
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Length = 15 cm, width = 12 cm, Perimeter = 54 cm
Step-by-step explanation:
The ratio of the length and breadth of a rectangle is 5:4 and its area is 180 cm².
Length = 5x
Breadth = 4x
Area of rectagle,
A = bl
180 = 5x × 4x
180 = 20x²
x² = 9
x = 3
Length = 5x = 5(3) = 15 cm
Width = 4x = 4(3) = 12 cm
Perimeter of rectangel,
P = 2(l+b)
= 2(15+12)
= 54 cm
Hence, this is the required solution.
7
If m was 1, then it would be
4 +8 = 36, which is not true.
If m was 7, then it would be
28 + 8 = 36, which is true.
If m was 11, then it would be
44 + 8 = 36, which is not true.
If m was 36, then it would be
144 + 8 = 36, which is not true.
Hope that helps!