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अनुक्रमण
मध्य 8
Math

surface area of 3d shapes

Sivaranjani Se

23

15 प्रश्न

गलत उत्तर की अनुमति दें

उत्तर छिपाएँ

सार्वजनिक क्विज़

# 1बहुविकल्पी
Which of the following is the correct formula for finding the surface area of a rectangular prism?
2(lw + lh + wh)
lwh
πr²h
4πr²
# 2बहुविकल्पी
Which of the following is the correct formula for finding the surface area of a rectangular prism?
2(lw + lh + wh)
lwh
πr²h
4πr²
# 3बहुविकल्पी
Which of the following is the correct formula for finding the surface area of a rectangular prism?
2(lw + lh + wh)
lwh
πr²h
4πr²
# 4बहुविकल्पी
Which of the following is the correct formula for finding the surface area of a rectangular prism?
2(lw + lh + wh)
lwh
πr²h
4πr²
# 5बहुविकल्पी
Which of the following is the correct formula for finding the surface area of a rectangular prism?
2(lw + lh + wh)
lwh
πr²h
4πr²
# 6बहुविकल्पी
Which of the following is the correct formula for finding the surface area of a rectangular prism?
2(lw + lh + wh)
lwh
πr²h
4πr²
# 7सही/गलत
A cube has 6 faces of equal area.
# 8लघु उत्तर
Write the formula for the surface area of a sphere. (Hint: Use π and r)
4πr²
# 9बहुविकल्पी
Which shape has a curved surface area and two circular bases?
Cylinder
Cube
Rectangular prism
Pyramid
# 10सही/गलत
The surface area of a cone includes the area of the circular base and the lateral (side) surface area.
# 11लघु उत्तर
If a cube has an edge length of 5 cm, what is its total surface area? (Give your answer in cm².)
150
# 12बहुविकल्पी
What is the surface area of a sphere with radius r?
4πr²
2πr²
πr²
6πr²
# 13सही/गलत
A pyramid can never have a square base.
# 14लघु उत्तर
Name the part of a cylinder that makes up its curved surface area.
lateral surface
# 15सही/गलत
The surface area of a rectangular prism with length 2 cm, width 3 cm, and height 4 cm is 52 cm².
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