CBSE Class 9 Answered
If the bisectors of B and C of triangle of a ABC intersect at O, then prove that BOC = 90o + .
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
In ABC A + B + C =180o (angle sum of a )
OBC + BCO + BOC =180o (angle sum of BOC)
But OBC = B and BCO = C
B +C + BOC =180o
(B + C + A) +BOC = 180o + A (adding A to both sides)
(180o) + BOC = 180o + A
90o + BOC = 180o + A
BOC = 90o +A
Hence proved.
Answered by | 04 Jun, 2014, 03:23: PM
Application Videos
Concept Videos
CBSE 9 - Maths
Asked by raghavgargrg28 | 10 Sep, 2021, 05:11: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by kamateganpati | 08 Sep, 2021, 06:17: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by swatipuspapatel | 07 Feb, 2021, 07:29: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by sanjanatirthani0574 | 12 Sep, 2020, 10:18: AM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by Tanushkadari456 | 22 Sep, 2019, 05:50: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by Santosh.kumar0317 | 19 Aug, 2019, 05:12: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by Chetna.lagoon | 18 Aug, 2019, 07:32: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by Girishdhawan | 01 Jul, 2018, 03:13: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT