Find the greatest angle of the triangle whose sides are 3, 5 and 7 cms.

Find the greatest angle of the triangle whose sides are of length 5, 12 and 13 cms

Find the greatest angle in the triangle whose sides are x^2+x+1 ,2x+1, x^2-1

Find the area of a triangle whose vertices are A(3,8) ,B(-4,2) and C(5,-1).

Construct an equilateral triangle with sides 4 cm and then construct a similar triangle of the given triangle whose sides are 3/4 times of the given triangle.

Find the area of the triangle whose vertices are (5,2),(-9,-3),(-3,-5)

Find the centroid of the triangle, whose vertices are (1, - 3, 4), (3,4,8) and (2, -4, -3).

Find the length of the hypotenuse of the triangles whose other two sides are:(i)6cm ,8 cm

Find the area of the triangle whose vertices are.(ii) (-5,-1),(3,-5),(5,2)

Find the areas of the triangle whose vertics are (4,4),(3,-2),(-3,16)

Find the area of the triangle formed by joining the mid-points of the sides of the triangle whose vertices are (0,-1),(2,1) and (0,3).Find the ratio of this area to the area of the given triangle.