Show that the area of the triangle contained between the vectors a and b is one half of the magnitude of ax b.

Prove that the area of an equilateral triangle described on one side of a square is equal to half the area of the equilateral triangle described on one of its diagonals.

Prove that the area of an equilateral triangle with sides equal to the sides of a square is half the area of the equilateral triangle with sides equal to țhe length of the diagonals of the square.

Prove that area of the equilateral triangle described on the side of a square is half. The area of the equilateral triangle described on its diagonal.

The area of an equilateral triangle ABC is 17320.5cm^2 .With each vertex of the triangle as center,a circle is drawn with radius equal to half the length of the side of the triangle(seeFig.12.28).Find the area of the shaded region.(use pi=3.14 and sqrt3=1.73205 )

Show that If A sube B then A nn B=A

Find the area of the triangle whose vertices are (0, 0), (a, 0) and (0, b).

Find the areas of the triangle whose vertics are (a,bc),(b,ca),(c,ab)

If one angle of a triangle is equal to one angle of another triangle and the bisectors of these equal angles divide the opposite side in the same ratio then show that the triangle are similar.

The area of the triangle fomed by the line x/a+y/b=1 with the Co-ordinate axes is a)ab b)2ab c)1/2ab d)1/4ab

What is unit vector? Prove that magnitude of unit vector is one.