Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 9 Answered

what is integer sided triangle?
 
 
 
Asked by badesraajay | 01 Aug, 2015, 06:20: PM
answered-by-expert Expert Answer
C o n s i d e r space t h e space g i v e n space f i g u r e. E x t e r n a l space a n g l e space b i s e c t o r space T h e o r e m colon space T h e space e x t e r n a l space b i s e c t o r space o f space a n space a n g l e space o f space a space t r i a n g l e space d i v i d e s space t h e o p p o s i t e space s i d e space e x t e r n a l l y space i n space t h e space r a t i o space o f space t h e space s i d e s space c o n t a i n i n g space t h e space a n g l e. T h e r e f o r e comma space b y space t h e space a b o v e space e x t e r n a l space a n g l e space b i s e c t o r space t h e o r e m comma space w e space h a v e comma fraction numerator B E over denominator C E end fraction equals fraction numerator A B over denominator A C end fraction... left parenthesis 1 right parenthesis A l s o space g i v e n space t h a t space A B equals 10 space c m comma space A C equals 6 space c m space a n d space B C equals 12 space c m W e space n e e d space t o space f i n d space t h e space v a l u e space o f space C E. L e t space u s space a s s u m e space t h a t space C E equals x T h u s comma space e q u a t i o n space left parenthesis 1 right parenthesis space b e c o m e s comma fraction numerator B C plus C E over denominator C E end fraction equals fraction numerator A B over denominator A C end fraction rightwards double arrow fraction numerator 12 plus x over denominator x end fraction equals 10 over 6 rightwards double arrow 6 open parentheses 12 plus x close parentheses equals 10 x rightwards double arrow 72 plus 6 x equals 10 x rightwards double arrow 4 x equals 72 rightwards double arrow x equals 72 over 4 rightwards double arrow x equals 18 space c m
Answered by Vimala Ramamurthy | 03 Aug, 2015, 09:04: AM

Application Videos

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 9 - Maths
triangle ABC is an equilateral triangle, AB = 6cm. the points P,Q and R are midpoints of AB BC, CA respectively . the perimeter of □ PBCR is
question image
Asked by ghodage | 12 Dec, 2023, 07:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
the area of an equilateral triangle is 49√3 sq.cm, it's perimeter is
Asked by vijaykasaudhan913 | 10 Dec, 2023, 04:40: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
M is a point inside a square ABCD. AMCD is equilateral triangle and MC cuts diagonal DB at E. Then, ZBEC=..... (1) 75° (3) 105° (2) 90° (4) 60°
Asked by Krishna962511 | 23 Jan, 2023, 10:41: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
In fig. 12.116 , T is a point on the side QR of ∆ PQR and S is a point such that RT=St. Prove that PQ+PR>QS
Asked by shivendrasinghfauzdar | 09 Oct, 2021, 11:30: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
In the figure, ABCD is a square and PAB is a triangle such that AQ = BR. Prove that DPQR is an isosceles triangle.
Asked by thebeatinbrat | 01 Oct, 2021, 08:56: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
If the vertex angle of an isosceles triangle is 50° ,find the other angels   
Asked by chikkammac24212 | 21 Aug, 2019, 07:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
show that BX=CY.
question image
Asked by shubham0kumar24 | 19 May, 2019, 12:44: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
AD is an altitude of an isosceles triangle ABC in which AB=AC.Show that  ( i )AD bisects BC (ii) AD bisects angle A.
Asked by Nagu.sahukar1543 | 14 Nov, 2018, 08:11: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
If the segments drawn perpendicular to the two sides of a triangle from the mid point of the third side be congruent and equally inclined to the third side, prove that the triangle is isosceles.
Asked by Topperlearning User | 10 Aug, 2017, 01:53: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 9 - Maths
If the altitudes from two vertices of a triangle to the opposite sides are equal, prove that the triangle is isosceles.
Asked by Topperlearning User | 10 Aug, 2017, 01:56: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt
Get Latest Study Material for Academic year 24-25 Click here
×