In math practice the questions given below in the worksheet on solid geometry. With the help of the diagram practice the geometry questions.

**1.** When is a straight line said to be …

(i) Parallel to a plane and

(ii) Perpendicular to a plane? **2. **Define projection of a line segment on a plane. **3. **What is meant by the angle between a straight line and a plane? Explain with the help of a diagram. **4. **Define dihedral angle. How is the dihedral angle measured? **5. **With the help of a diagram explain the concept of a dihedral angle and its measure. **6. **Explain with the help of diagrams the following terms:

(i) Dihedral angle

(ii) Normal to a plane.

**7. ** Define skew lines. How is the angle between two skew lines measured?

**8. ** If two parallel planes are intersected by another plane, then show that the two straight lines, in which the latter plane intersects the other two planes, are also parallel.

**●** **Geometry**

**Solid Geometry****Worksheet on Solid Geometry****Theorems on Solid Geometry****Theorems on Straight Lines and Plane****Theorem on Co-planar****Theorem on Parallel Lines and Plane****Theorem of Three Perpendiculars****Worksheet on Theorems of Solid Geometry**

**11 and 12 Grade Math**** ****From Worksheet on Solid Geometry to HOME PAGE**

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