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Recent questions tagged triangle
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1
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In Fig. 8.24,XP and XQ are two tangents to the circle with centre O, drawn from an external point X.
asked
Apr 6, 2019
in
JEE
by
kratos
jee
circles
class-10
jee mains
triangle
+1
vote
1
answer
The points of contact of the vertical tangents to x = 2 – 3 sinϕ, y = 3 + 2 cosϕ are
asked
Apr 5, 2019
in
JEE
by
kratos
straight lines
cbse
trigonometry
class-11
jee
matrices
determinants
class-10
jee mains
triangle
+3
votes
1
answer
AB = BC = CA = 4.5 cm. Measure all the angles of the triangle. Are they equal ?
asked
Apr 5, 2019
by
kratos
class-6
icse
triangle
+2
votes
1
answer
Let f, g, h be the lengths of the perpendiculars from the circum centre of the ∆ABC on the sides a,
asked
Apr 4, 2019
in
JEE
by
kratos
jee
jee mains
triangle
+1
vote
1
answer
Internal bisector of ∠A of triangle ABC meets side BC at D. A line drawn through D perpendicular to AD intersects
asked
Apr 3, 2019
in
JEE
by
kratos
properties of triangles
jee
class-9
class-7
jee mains
triangles
congruence and inequalities of triangles
triangle
+2
votes
1
answer
Perpendiculars are drawn from the vertices A, B, C of an acute angled triangle on the opposite sides,
asked
Apr 2, 2019
in
JEE
by
kratos
jee
jee mains
triangle
+1
vote
1
answer
In an isosceles ∆ ABC, if the altitudes intersect on the inscribed circle then find the secant of the vertical angle ‘A’.
asked
Apr 2, 2019
in
JEE
by
kratos
jee
jee mains
triangle
+1
vote
1
answer
Prove that a triangle ABC is equilateral if and only if tan A + tan B + tan C = 3√3.
asked
Apr 2, 2019
in
JEE
by
kratos
jee
triangle
jee mains
properties of triangles
+3
votes
1
answer
With usual notation, if in a triangle ABC (b + c)/11 = (c + a)/12 = (a + b)/13,
asked
Apr 1, 2019
in
JEE
by
kratos
properties of triangles
jee
jee mains
triangles
triangle
+2
votes
1
answer
AB = 3 cm, BC = 7 cm and ∠B = 90°.
asked
Mar 31, 2019
in
JEE
by
kratos
jee
class-6
icse
jee mains
triangle
+3
votes
1
answer
The orthocenter of the triangle F1 MN is (A) (- 9/10, 0) (B) (2/3, 0)
asked
Mar 24, 2019
in
JEE
by
kratos
jee
jee mains
triangle
+1
vote
1
answer
In any triangle ABC, if tanθ = (2√ab)/(a - b)sinC/2 Prove that c = (a - b) secθ
asked
Mar 22, 2019
in
JEE
by
kratos
jee
jee mains
triangle
+2
votes
1
answer
In a triangle of base a, the ratio of the other two sides is r(< 1). Show that the altitude of the triangle is less than or equal to ar/1 - r^2.
asked
Mar 22, 2019
in
JEE
by
kratos
properties of triangles
jee
class-7
jee mains
triangle
+1
vote
1
answer
If sinθ + sinϕ = a and cosθ + cosϕ = b, then
asked
Mar 22, 2019
in
JEE
by
kratos
straight lines
trigonometry
class-11
jee
matrices
determinants
jee mains
triangle
+3
votes
1
answer
If the angle of a triangle are 30° and 45° and the included side is (√3 + 1) cm, then the area of the triangle is . . . .
asked
Mar 21, 2019
in
JEE
by
kratos
jee
triangle
jee mains
properties of triangles
+1
vote
1
answer
Let ABC be a triangle such that ∠ACB = π/6 and let a,b and c denote the lengths of the sides opposite to A, B
asked
Mar 21, 2019
in
JEE
by
kratos
class-9
jee
jee mains
triangle
+2
votes
1
answer
If sin θ + sinϕ = √3 (cos ϕ – cos θ), then sin3θ + sin3ϕ is equal to
asked
Mar 20, 2019
in
JEE
by
kratos
cbse
trigonometry
jee
class-10
jee mains
triangle
+2
votes
1
answer
If p1,p2,p3 are, respectively, the perpendiculars from the vertices of a triangle to the opposite sides, then p1 p2 p3
asked
Mar 20, 2019
in
JEE
by
kratos
jee
triangle
jee mains
properties of triangles
+2
votes
1
answer
If p1, p2, p3 are the altitudes of ∆ABC, then show that 1/p21 + 1/p22 + 1/p23 = (Cot A + Cot B + Cot C)/∆
asked
Mar 19, 2019
in
JEE
by
kratos
straight lines
properties of triangles
class-11
jee
relations and functions
jee mains
class-12
triangle
+1
vote
1
answer
Find the equation of the circum circle of the triangle formed by the line ax + by + c = 0 (abc ≠ 0) and the coordinate axes.
asked
Mar 18, 2019
in
JEE
by
kratos
class-11
circles
jee
vectors
class-10
icse
jee mains
triangle
three dimensional geometry
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