Question

X = -4

E. x = 4y
D.
y = -4
QUESTION 37
The length and width of a rectangle are given as
x+y and x - y.
If x= 5 cm and y = 2 cm, what is the area in
2
cm of the rectangle?
R
10

Answer 1

To find the area of a rectangle, multiply the length by the width. When x=5 cm and y=2 cm, the length and width are 7 cm and 3 cm respectively, resulting in an area of 21 cm2.

Step-by-step explanation:

To find the area of the rectangle, we need to multiply the length by the width. Given that the length is x+y and the width is x-y, we can substitute the values of x and y into these expressions. When x=5 cm and y=2 cm:

Length = 5+2 = 7 cm

Width = 5-2 = 3 cm

Area = Length × Width = 7 cm × 3 cm = 21 cm2

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