# Here are the shadows of some 3-D objects, when seen under the lamp of an overhead projector. Identify the solid(s) that match each shadow. (There may be multiple answers for these!)

**Solution:**

(i) A **ball or sphere** will give a shadow of a circle

(ii) A **cube-shaped object such as dice** will give the shadow of a square

(iii) An** ice-cream cone or a birthday cap** will give the shadow of a triangle

(iv) A **book or a cuboid shape** object will give the shadow of a rectangle

**ā Check: **Class 7 Maths NCERT Solutions Chapter 15

**Video Solution:**

## Here are the shadows of some 3-D objects, when seen under the lamp of an overhead projector. Identify the solid(s) that match each shadow.

Maths NCERT Solutions Class 7 Chapter 15 Exercise 15.4 Question 2

**Summary:**

When we see shadows of solids like ball, cube, geometry box etc under a lamp of an overhead projector they will look like (i) A ball or sphere will give a shadow of a circle (ii) A cube-shaped object such as dice will give the shadow of a square (iii) An ice-cream cone or a birthday cap will give the shadow of a triangle (iv) A book or a cuboid shape object will give the shadow of a rectangle.

**ā Related Questions:**

- Give I An Oblique Sketch And Ii An Isometric Sketch For Each Of The Following A Cuboid Of Dimensions 5 Cm 3 Cm And 2 Cm Is Your Sketch Unique B A Cube With An Edge 4 Cm Long
- What Cross Sections Do You Get When You Give A I Vertical Cut Ii Horizontal Cut To The Following Solids A A Brick B A Round Apple C A Die D A Circular Pipe E An Ice Cream Cone
- A Bulb Is Kept Burning Just Right Above The Following Solids Name The Shape Of The Shadows Obtained In Each Case Attempt To Give A Rough Sketch Of The Shadow
- Examine If The Following Are True Statements I The Cube Can Cast A Shadow In The Shape Of A Rectangle Ii The Cube Can Cast A Shadow In The Shape Of A Hexagon

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