Question

solveeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

Answer 1

Answer:

65

Step-by-step explanation:

sum of 3 angles 180

one is 50

sum of other 2 equal angles =180-50 =130

so   130 /2 =65

Answer 2

$\huge \bold{Reactangle}$

Rectangle is a quadrilateral with four sides.

Its properties are :-

▶Its opposite sides are equal

▶Angles at vertices is of 90.

▶Diagonal bisects each other equally.

$\bold{Given}$

Let the diagonals meets at point O.

In ΔQOR

$\mathsf{ \angle 1 = 50}$

$\mathsf{ \angle ORQ = \angle 2 }$

Reason:-

OR = OQ because diagonal bisects each other equally

$\mathsf{ \angle 2 = ?}$

So,

By angle sum property,

Sum of all three angles of triangle is equal to 180 degress.

$\mathsf{ \angle 1 + \angle 2 + \angle ORQ= 180}$

$\mathsf{ 50 + 2 \times \angle 2 = 180}$

$\mathsf{ 2 \times \angle 2 = 180 -50}$

$\mathsf{ 2\times \angle 2= 130}$

$\mathsf{ \angle 2=\dfrac{ 130}{2}}$

$\huge \boxed{\mathsf{ \angle 2 = 65 }}$

Therefore,

$\large \boxed{\mathsf{ OPTION \: D \: IS \: CORRECT}}$