Have a query? Ask a Tutor!!

Access to best educators and exclusive paper discussions

Offsite Campus Turito Championship

Can’t find what you’re looking for?

Our tutors are from top schools around the world, and they are waiting for you 24/7, anytime, anywhere.

Homework- One to One Solutions
Understand concepts to solve better
Get your doubts solved instantly

Maths-

General

Easy

Question

If in a triangle ABC, AD, BE and CF are the altitudes and R is the circum-radius, then the radius of the circle DEF is

R/2
2R
R
None of these

The correct answer is: R/2

Related Questions to study

If I, I1, I2 and I3 be respectively the centres of the in-circle and the three escribed circles of a triangle ABC, then I2 I3 =

If I, I1, I2 and I3 be respectively the centres of the in-circle and the three escribed circles of a triangle ABC, then I2 I3 =

If 1, 2, 3 are respectively the perpendicular from the vertices of a triangle on the opposite side, then 1 2 3 =

If 1, 2, 3 are respectively the perpendicular from the vertices of a triangle on the opposite side, then 1 2 3 =

In a ABC, r r1 r2 r3 =

In a ABC, r r1 r2 r3 =

parallel

If r1, r2, r3 in a triangle be in H.P. then the sides are in -

If r1, r2, r3 in a triangle be in H.P. then the sides are in -

$open parentheses fraction numerator 1 over denominator r end fraction minus fraction numerator 1 over denominator r subscript 1 end subscript end fraction close parentheses open parentheses fraction numerator 1 over denominator r end fraction minus fraction numerator 1 over denominator r subscript 2 end subscript end fraction close parentheses open parentheses fraction numerator 1 over denominator r end fraction minus fraction numerator 1 over denominator r subscript 3 end subscript end fraction close parentheses$ =

$open parentheses fraction numerator 1 over denominator r end fraction minus fraction numerator 1 over denominator r subscript 1 end subscript end fraction close parentheses open parentheses fraction numerator 1 over denominator r end fraction minus fraction numerator 1 over denominator r subscript 2 end subscript end fraction close parentheses open parentheses fraction numerator 1 over denominator r end fraction minus fraction numerator 1 over denominator r subscript 3 end subscript end fraction close parentheses$ =

In an equilateral triangle, the in-radius, circum-radius and one of the ex- radii are in the ratio-

In an equilateral triangle, the in-radius, circum-radius and one of the ex- radii are in the ratio-

parallel

If r1 = r2 + r3 + r, then the  is -

If r1 = r2 + r3 + r, then the  is -

(r1 + r2) (r2 + r3) (r3 + r1) =

(r1 + r2) (r2 + r3) (r3 + r1) =

r2 r3 + r3 r1 + r1 r2 =

r2 r3 + r3 r1 + r1 r2 =

parallel

If the sides be a, b, c then $fraction numerator r subscript 1 end subscript minus r over denominator a end fraction plus fraction numerator r subscript 2 end subscript minus r over denominator b end fraction$ =

If the sides be a, b, c then $fraction numerator r subscript 1 end subscript minus r over denominator a end fraction plus fraction numerator r subscript 2 end subscript minus r over denominator b end fraction$ =

In any ABC, cosA + cosB + cosC =

In any ABC, cosA + cosB + cosC =

In any ABC, sinA + sinB + sinC =

In any ABC, sinA + sinB + sinC =

parallel

The length of a rubber cord is $l subscript 1 blank end subscript$ metre when the tension is 4 N and $l subscript 2 blank end subscript$ metre when the tension is 6N. The length when the tension is 9 N, is

The length of a rubber cord is $l subscript 1 blank end subscript$ metre when the tension is 4 N and $l subscript 2 blank end subscript$ metre when the tension is 6N. The length when the tension is 9 N, is

Physics-General

Coefficient of isothermal elasticity $E subscript theta end subscript$ and coefficient of adiabatic elasticity $E subscript ϕ end subscript$ are related by $left parenthesis gamma equals C subscript p end subscript divided by C subscript v end subscript right parenthesis$

Coefficient of isothermal elasticity $E subscript theta end subscript$ and coefficient of adiabatic elasticity $E subscript ϕ end subscript$ are related by $left parenthesis gamma equals C subscript p end subscript divided by C subscript v end subscript right parenthesis$

Physics-General

A wire of diameter $1 m m$ breaks under a tension of $1000 blank N$ . Another wire, of same material as that of the first one, but of diameter $2 blank m m$ breaks under a tension of

A wire of diameter $1 m m$ breaks under a tension of $1000 blank N$ . Another wire, of same material as that of the first one, but of diameter $2 blank m m$ breaks under a tension of

Physics-General

parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.