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Workshop Calculation and Science Practice Test: Area Of Cut Out Regular And Irregular Surfaces
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To find the area of an irregular shape, you can divide it into smaller, regular shapes. Then, you can find the area of each shape and add them together.

For example, if an irregular polygon is made up of a square and a triangle, then: Area of irregular polygon = Area of Square + Area of Triangle. 

The area of irregular shapes is given in square units.

Workshop Calculation and Science Practice Test: Area Of Cut Out Regular And Irregular Surfaces
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25 Questions

1. What is the area of the irregular surfaces?
2. A cube of side 6 cm is cut into a number of cubes, each of side 2 cm. The number of cubes will be.
3. What is the circumference of a circle whose diameter is 7 cm?
4. A surahi is the combination of
5. What is the area of the sector, if the diameter is 12 cm and the angle is 60°?
6. What is the diameter of the circle, if the area of the circle is 78.5cm²?
7. What is the formula for area of the circle?
8. What is the area of the lamina?
9. What is the area of the irregular surfaces?
10. What is the formula for area of the segment of a circle?
11. What is the area of irregular surfaces?
12. What is the length of arc of a sector, whose perimeter is 64.8cm and radius is 12.4 cm?
13. What is the radius of the circle if the angle of sector is 90° and the area of the circle is 196 cm2?
14. If two solid hemispheres of the same base radius r are joined together along their bases, then curved surface area of this new solid is
15. A cube whose edge is 20 cm long, has circles on each of its faces painted black. What is the total area of the unpainted surface of the cube if the circles are of the largest possible areas?
16. What is the radius of the semicircle, if the circumference of the semicircle is 28.26 cm?
17. How many bags of grain can be stored in a cuboid granary 12 m × 6 m × 5 m. If each bag occupies a space of 0.48 m3?
18. What is the area of the surface?
19. What is the name of the region of a circle between any two point on the circumference?
20. The ratio of the volume of a cube to that of a sphere which will fit inside the cube is
21. What is the length of arc of a sector whose radius is 3.6 cm and angle is 36°?
22. What is the area of the irregular lamina?
23. What is the area of conical object?
24. During conversion of a solid from one shape to another, the volume of the new shape will
25. What is the radius of the circle, whose circumference is 440 cm?