CBSE Class 10 Answered
pl
Asked by dipanshupanwar144 | 03 Dec, 2023, 19:23: PM
Expert Answer
Qn.12
QRS is common to ΔRQS and ΔRPT .RQS = RPT ( Given )Since RQS and RPT are corrsponding angles and they are equal , hence QS || PT
RQS and RPT are corrsponding angles and they are equal , hence QS || PTHence PTR = QSR ( because they are corresponding angles )
PTR = QSR ( because they are corresponding angles ) Since three angles of ΔRQS are equal to respective angles of ΔRPT , ΔRQS and ΔRPT are similar by AAA similarity criterion.
-----------------------------------------------------
Qn. 13
3π is irrational number because π is irrational
5√5 is irrational because √5 is irrational
0.345710651372849.... is irrational because this nonterminating decimal number
0.3466666.... is rational number because this recurring decimal number
0.3466666... = 0.34 + 0.0066666.....
0.3466666... = (34/100) + (6/100) (0.11111.....)
0.3466666... = (34/100) + (6/100)(1/9) = 312/900 = 78/225
-----------------------------------------------------------
Qn.14
if we consider ΔPQR and ΔZYX, QPR = YZX = 60o
QPR = YZX = 60o Respective sides of these angles are in same ratio as given below
XZ/PR = YZ/QR = 1.5
Hence ΔPQR and ΔZYX are similar by SAS criterion
ΔLMN does not show any similarity with other triangles .
Answered by Thiyagarajan K | 03 Dec, 2023, 21:40: PM
CBSE 10 - Maths
Asked by shivalaxmi0205 | 11 Mar, 2024, 17:51: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by mishraananya969 | 05 Mar, 2024, 23:23: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by surender0145 | 07 Jan, 2024, 08:59: AM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by darshanpatilr08 | 19 Sep, 2023, 22:35: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by supriyasupriya39.10 | 20 Jan, 2023, 20:40: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by savitamahajan202 | 29 Dec, 2022, 14:12: PM
ANSWERED BY EXPERTCBSE 10 - Maths
BC. If AC > AB. Show that: AB2 = AD2 - BC x DE + 
Asked by Topperlearning User | 22 Dec, 2014, 13:30: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by Topperlearning User | 04 Jun, 2014, 13:23: PM
ANSWERED BY EXPERTCBSE 10 - Maths
Asked by | 03 Dec, 2012, 00:06: AM
ANSWERED BY EXPERT
