Mathematics
Grade10
Easy
Question
In question 8, what is the area of each of the paint compartments in the tray?
- 9 square in
- 16 square in
- 25 square in
- (4x – 6)(x - 1) square in
Hint:
Quadratic polynomial is a polynomial in which the highest degree monomial is of the second degree.
The correct answer is: 9 square in
Let’s use the length of the tray to find the dimensions of each of the paint compartments.
Since they are square in shape, so let a be their length and width.
2x + a + x + a + x + a + x + a + 2x = 7x + 12
7x + 4a = 7x + 12
4a = 12
a = 3 in.
So, the area of each of the paint compartments is 3×3 i.e. 9 square in.
Hence, the correct option is A.
Area of a rectangle = length × breadth sq. units.
