If `b=sqrt3`,c=1and `A=30^@`,solve the triangle ABC.

In figure the perimeter of triangle ABC is

If A,B and C are interior angle of a triangle ABC ,then the value of cos((B+C)/2)

If A,B and C are interior angle of a triangle ABC,then show that sin(B+C)/2=cos(A/2)

ABC is a right angle triangle right angled at C. If AC =3 and AB:BC = 13:5, then find sinA and tanB.

Construct a triangle similar to a given trinagle ABC . Such that each similar side is 5/7 th part of the triangle ABC

Construct a triangle similar to a given triangle ABC with its sides equal to 5/4 of the corresponding sides of a a triangle ABC.

If A(x_1,y_1),B(x_2,y_2) and C(x_3,y_3) are the vertices of triangleABC ,find the coordinates of the centroid of the triangle.

The vertices of a triangle are (a, 0), (-a, 0) and (0, sqrt(3a)) . Show that the triangle is equilateral.

In ABC, AB=3cm BC=4cm and CA=5cm , construct a triangle similar to ABC such that each of its sides is 3/4 of the corresponding sides of ABC.

Solve the triangle ABC if a=sqrt3+1 ,b=2, C=60^@