2d Shapes
Quiz
•
Mathematics
•
8th Grade
•
Practice Problem
•
Medium
Melissa Ramsay
Used 6+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the perimeter of a square with side length 5 cm?
15 cm
20 cm
25 cm
30 cm
Answer explanation
The perimeter of a square is calculated by multiplying the side length by 4. For a square with a side length of 5 cm, the perimeter is 5 cm x 4 = 20 cm. Therefore, the correct answer is 20 cm.
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the formula for calculating the area of a rectangle?
2(length + width)
length x width
length - width
length + width
Answer explanation
The area of a rectangle is calculated by multiplying its length by its width. Therefore, the correct formula is 'length x width', which represents the total space within the rectangle.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following shapes is a three-sided polygon?
Square
Circle
Triangle
Rectangle
Answer explanation
A triangle is a three-sided polygon, defined by three edges and three vertices. In contrast, a square and rectangle have four sides, and a circle has no sides, making triangle the correct choice.
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the distance from the center to the outer line of a circle called?
Perimeter
Diameter
Circumference
Radius
Answer explanation
The distance from the center to the outer line of a circle is called the radius. It is half the diameter and is essential for calculating the area and circumference of the circle.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How do you calculate the perimeter of a triangle?
length x width
s x 3
a + b + c
2(a + b)
Answer explanation
To calculate the perimeter of a triangle, you add the lengths of all three sides. The correct formula is a + b + c, where a, b, and c are the lengths of the sides.
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
What is the area of a square with side length 5 cm?
20 cm²
35 cm²
25 cm²
30 cm²
Answer explanation
The area of a square is calculated by squaring the side length. Here, the side length is 5 cm. Thus, the area = 5 cm × 5 cm = 25 cm². Therefore, the correct answer is 25 cm².
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following is NOT a common 2D shape?
Triangle
Circle
Square
Cube
Answer explanation
A cube is a 3D shape, while a triangle, circle, and square are all common 2D shapes. Therefore, the correct answer is cube, as it does not belong to the category of 2D shapes.
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