## VBQ for Class 9 Area Chapter 9 Areas Of Parallelograms And Triangles

Class 9 Area students should refer to the following value based questions with answers for Chapter 9 Areas Of Parallelograms And Triangles in standard 9. These VBQ questions with answers for Grade 9 Area will come in exams and help you to score good marks

### Chapter 9 Areas Of Parallelograms And Triangles VBQ Questions Class 9 Area with Answers

**AREAS OF PARALLELOGRAMSAND TRIANGLES**

**Question. A craft mela is organised by Welfare Association to promote the art**

**and culture of tribal people. The pandal is to be decorated by usin**

**string of bulbs all around the field. There are two options either to**

**arrange it in a rectangular field ABEF or parallelogram ABCD with**

**equal area.**

**(a) What shape of the field should be chosen to minimise the expense**

**of bulb and why ?**

**(b) Which values are depicted here ?**

**Answer:**(a) Rectangle as

**Question**

**. A plot is in the form of a parallelogram ABCD. Owner of this plot**

**wants to build OLD AGE HOME, DISPENSARY, PARK and**

**HEALTH CENTRE for elderly people as shown in the fig. P is a**

**point on the diagonal BD.**

**(a) Prove that area alloted to old age home and dispensary is same.**

**(b) Which values are depicted here ?**

**Answer:**(a) Join AC

**Question**

**. There was a deserted land near a colony where people used to throw garbage. Colony people united to develop a pond in triangular shape as shown in the fig. The land is in the shape of | |gmABCD. In rest of the portion medicinal plants were grown. If area of parallelogram ABCD is 200 m2.**

**(a) Calculate the area where medicinal plants were grown.**

**(b) Which value is depicted here ?**

**Answer:**(a) 100 sq. cm.

**Question**

**. For ‘Sarva Shiksha Abhiyan’ a rally was organised by a school.**

**Students were given triangular cardboard pieces to write slogans. They**

**divided the triangular shape into three equal parts by drawingmedians**

**as shown in fig.**

**(a) Prove that area (AGC) = area (AGB)**

**= area (BGC)**

**=**

**1/**

**3 area (ABC)**

**(b) Which values are inculcated through this activity ?**

**Answer:**(a) In ΔABC, AD is median

**Question**

**. A farmer has a square plot of land where he wants to grow five different**

**crops at a time. On half of the area in the middle he wants to grow**

**wheat but in rest four equal triangular parts he wants to grow different**

**crops.**

**(a) Explain by diagram how he can divide the area to fulfill his**

**purpose.**

**(b) By using this crop pattern which values are depicted by the**

**farmer?**

**Answer:**(a)

**Question. There is a plot in a village in the shape of a quadrilateral ABCD.**

**Sarpanch wants to get floor cemented so as to use it for social**

**gatherings and panchayat meetings. Later due to construction of park**

**in the neighbourhood for children they decided to change the shape**

**to triangle ABP.**

**If AC | | DP**

**Answer:**(a) Since AC || DP

**Question**

**. On National Integration day a poster is to bemade by class IX students**

**of a school. This poster is in the shape of a parallelogram. All religions**

**should be given equal triangular space to display their teachings.**

**(a) How will they divide a parallelogram into four triangles equal in**

**area ? Justify it.**

**(b) What are the values depicted here ?**

**Answer:**(a) Diagonals of a | | gm divides it into four triangles of equal area.

**Question**

**. In a class, teacher gave two identical carboard pieces which are in the**

**shape of a parallelogram to two groups. First group was asked to find****area of parallelogramusingAB as base. Then another group was askedto find height (h) of the parallelogram with AD as base.**

**(a) How will they find value of h ?**

**(b) What are the values involved here ?**

**Answer:**(a) Area of | |gm ABCD

**Question**

**. In a class, teacher asks the students to cut a figure from a given parallelogram which has area equal to half the area of parallelogram**

**ABCD. Sunita joins the mid points of opposite sides of parallelogram as shown in the fig**

**Where as Rohan draws a triangle on the same base as shown in fig.**

**(a) State whether two answers are correct. Justify.**

**(b) What values are depicted from this activity ?**

**Answer:**(a) Both are giving correct answer.

**Question**

**. In a rhombus ABCD, AC = 8 cm, then AO = 4 cm.**

**The statement shows**

**(a) Truth value (b) Social value**

**(c) Environment value (d) Cooperation**

**Justify your answer.**

**Answer:**(a) Truth value

## Books recommended by teachers

CBSE Class 9 Mathematics Linear Equations VBQs |

CBSE Class 9 Mathematics Quadrilaterals VBQs |

CBSE Class 9 Mathematics Areas Of Parallelograms And Triangles VBQs |

CBSE Class 9 Mathematics Circles VBQs |

CBSE Class 9 Mathematics Construction VBQs |

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