1
You visited us
1
times! Enjoying our articles?
Unlock Full Access!
Byju's Answer
Standard VII
Mathematics
Perpendicular Bisector and It's Construction
In a triangle...
Question
In a triangle ABC with vertices A(1,2), B(2,3) and C(3,1) and
∠
A
=
c
o
s
−
1
(
4
5
)
,
∠
B
=
∠
c
=
c
o
s
−
1
(
1
√
10
)
then find the circumcentre of the triangle ABC.
Open in App
Solution
Angle A is given 2 times which one I have to take
Suggest Corrections
0
Similar questions
Q.
If
A
(
cos
α
,
sin
α
)
,
B
(
cos
β
,
sin
β
)
,
C
(
cos
γ
,
sin
γ
)
are the vertices of
△
A
B
C
and
H
,
G
,
S
are the orthocentre, centroid and circumcentre of
△
A
B
C
respectively, then which of the following is/are true?
Q.
If
A
(
cos
α
,
sin
α
)
,
B
(
cos
β
,
sin
β
)
,
C
(
cos
γ
,
sin
γ
)
are the vertices of
△
A
B
C
and
H
,
G
,
S
are the orthocentre, centroid and circumcentre of
△
A
B
C
respectively, then which of the following is/are true?
Q.
If in a triangle ABC, the line joining the circumcentre and incentre is parallel to BC, then
cos
B
+
cos
C
is equal to
Q.
If vertices of
△
A
B
C
are
A
(
3
,
4
)
B
(
5
sin
t
,
5
c
o
s
t
)
and
C
(
5
cos
t
,
−
5
sin
t
)
, then find the locus of orthocentre of
△
A
B
C
.
Q.
If the in-circle of a
△
A
B
C
passes through the circumcentre, then the vaue of
(
cos
A
+
cos
B
+
cos
C
)
2
is
View More
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
Related Videos
Construction of Perpendicular Bisectors
MATHEMATICS
Watch in App
Explore more
Perpendicular Bisector and It's Construction
Standard VII Mathematics
Join BYJU'S Learning Program
Grade/Exam
1st Grade
2nd Grade
3rd Grade
4th Grade
5th Grade
6th grade
7th grade
8th Grade
9th Grade
10th Grade
11th Grade
12th Grade
Submit
AI Tutor
Textbooks
Question Papers
Install app