Exercise - 12
1. In the given figure, PQ || BC, AP = 2.4cm, AQ = 2cm, QC = 3cm and BC = 6cm. Find AB and PQ.
2. The diagonals AC and BD of a quadrilatereal ABCD intersect each other at O such that
prove that the quadrilateral ABCD is traperzium.
3. In 
and 
if AC = 4.8cm, find AE
4. In the given figurer, PQ || BC and PR || CD,
prove that 
5. In 
is parallel to base BC, with D on AB and E on AC. If
find 
6. In the given figure, PQ || AB and PR || AC. prove that QR || BC.
7. If three or more parallel lines, are intersected by two transversals, prove that the intercepts made by them on the trans versals are proportional.
8. In the given figure, DE || AC and DC || AP, prove that 
9. In the given figure, 
and DE || AB prove that AD = BE.
10. In the given figure AB || CD. If OA = 3x - 19, OB = x - 4, OC = x - 3 and OD = 4cm, determine x.
| Answers | ||
| (10). (x = 11 cm or 8 cm) | ||
| Subjects | Maths (Part-1) by Mr. M. P. Keshari |
| Chapter 1 | Linear Equations in Two Variables |
| Chapter 2 | HCF and LCM |
| Chapter 3 | Rational Expression |
| Chapter 4 | Quadratic Equations |
| Chapter 5 | Arithmetic Progressions |
| Chapter 6 | Instalments |
| Chapter 7 | Income Tax |
| Chapter 8 | Similar Triangles |
