Advertisements
Advertisements
प्रश्न
ABCD is a rhombus. If ∠ACB = 40°, find ∠ADB.
Advertisements
उत्तर
\[\text{ In a rhombus, the diagonals are perpendicular } . \]
\[ \therefore \angle BPC = 90°\]
\[\text{ From ∆ BPC, the sum of angles is }180° . \]
\[ \therefore \angle CBP + \angle BPC + \angle PBC = 180°\]
\[\angle CBP = 180° - \angle BPC - \angle PBC\]
\[\angle CBP = 180° - 40° - 90° = 50° \]
\[\angle ADB = \angle CBP = 50°(\text{ alternate angle })\]
संबंधित प्रश्न
The following figure is parallelogram. Find the degree values of the unknowns x, y, z.
The following figure is parallelogram. Find the degree values of the unknown x, y, z.
Two adjacent angles of a parallelogram are as 1 : 2. Find the measures of all the angles of the parallelogram.
Two adjacent sides of a parallelogram are 4 cm and 3 cm respectively. Find its perimeter.
Which of the following statement is true for a rhombus?
It has all its sides of equal lengths.
Which of the following statement is true for a rhombus?
It can be a square.
If all pairs of adjacent sides of a quadrilateral are congruent then it is called ______.
In rhombus ABCD;
(i) if ∠A = 74° ; find ∠B and ∠C.
(ii) if AD = 7.5 cm ; find BC and CD.
If the adjacent sides of a parallelogram are equal then parallelogram is a ______.
A Rangoli has been drawn on a flor of a house. ABCD and PQRS both are in the shape of a rhombus. Find the radius of semicircle drawn on each side of rhombus ABCD.
