what are the opposite angles of a rhombus

If A(0,0) , B(5, 0) , C(8, 4) and D(3, 4) are the vertices of a rhombus, then angle between the diagonals of it is _________. => a reflex angle or an acute angle or an obtuse angle or a right angle..

Two adjacent angles are said to form a linear pair of angles, if their non-common arms are two opposite rays. Recall adjacent angles. Now observe the pairs of angles in the figure. ..

Interior and Exterior angles of a triangle - In a triangle when we refer to an angle, we mean the angle bounded by the two sides. The three angles lie in the interior region of the triangle. These angles are called the interior angles of t..

In a triangle when we refer to an angle, we mean the angle bounded by the two sides. The three angles lie in the interior region of the triangle. These angles are called the interior angles of the triangle. Now observe the triangle in which the si..

To determine the angle of minimum deviation the side AB of the prism is made to face the ray of light. On looking through the face AC and rotating the prism table, the image of slit also turns. For a particular position of the prism, the slit becomes stationary. On further rotating the p..

Solution of Right Angled Triangles - To solve a right angled triangle, we need to find out the unknown sides and the angles with the help of t-ratios. To find a side, usually we take such t-ratios that involve the unknown sides. In the figure, AB = 100 cm, find (i) x a..

An airplane flying at an altitude of 100 m observes the angles of depression of opposite points on the two banks of a river to be 38°40′ and 72°20′. What is the width of the river? => 250 m or 157 m or 100 m or 200 m..

If the length of the hypotenuse of a 30° - 60° - 90° triangle is 22 cm, then the length of the leg opposite to 30° angle is => 10 3 cm or 1 cm or 11 cm or 20 2 cm..

What would you call a parallelogram if all its sides and angles are equal? => rhombus or square or rectangle or trapezoid..

Which of the polygons have congruent angles? => trapezoid or triangle or rectangle or rhombus..