9th stander mathe 2 practice set 3.2 | 9th standard math's 2 lesson 3 practice set 3.2

                        3 Triangle

                          Practice  3.2

                                  (Q1)

1. Answer:
By sss test of congruence ∆abc=∆pqr

2. Answer:
By sas test of congruence ∆XYZ=∆LMN

3. Answer:
By ASA test of congruence ∆PRQ=∆STU

4. Answer: the
By HYPOTENUSE SIDE test of congruence

                              (Q2)

1. Answer:
From the information shown in the figure in ∆abc and ∆pqr

/_ ABC= /_ pqr
Seg BC=seg qr
/_ ABC = /_ prq
* ∆abc=∆prq
*/_bac=/_qpr                     ......(c.a.c.t.)
* Seg ab= seg pq                ......(c.s.c.t.)
And seg AC= seg pr



2. Answer:

From the information shown in the figure in ∆ptq = ∆ ST
SEG PT = SEG ∆STR

/_PTQ= /_STR
SEG TQ= SEG TR
*∆PTQ=STR
* /_TPQ=/_TSR                    .......(c.a.c.t.)
AND /_TQP=/_TRS               .......(c.s.c.t.)
SEG PQ=SEG SR

                            (Q3)

Answer:


SIDE AC = SIDE QR               ......(c.s.c.t.)
/_ABC = /_QPR                     ......(c.a.c.t.)
/_ACB = /_QRP                     ......(c.a.c.t.)

                               (Q4)

/_MLN = /_NPM                    ......(c.a.c.t.)
/_LMN = /_PNM                      .....(c.a.c.t.)
/_LNM = /_PMN                    ......(c.a.c.t.)

                          (Q5)

in ∆ABD AND ∆CBD

Seg BA = seg BC                   .....(GIVEN)
seg AD = seg CD        
seg BD = seg BD        ........(common side)
 * ∆ABD = ∆CBD ....(SSS test congruence)

                            (Q6)

in ∆PQT and ∆RQS

/_ PQ = /_ RQS
Seg PQ = seg TQ
/_ QPT = /_QRS
* ∆PQT = ∆RQS
                      ....(ASA test of congruence)

9th stander mathe 2 practice set 3.2 | 9th standard math's 2 lesson 3 practice set 3.2