Question

show that each of a rectangle is a right angle​

Answer 1

Answer:

as all angles of rectangle are equal.

so let measure of each angle be x.

We know that sum of all angles of a quadrilateral is 360 degree.

therefore x+x+x+x=360

x=90 degree. Showed.

Answer 2

Answer:

all the sides of the rectangle is equal so we suppose one side of rectangle is x, in rectangle four sides so x + x + x + x = 360,so all angles become 90 degree