Question

otba questions of maths class 9 on theme -2

Answer 1

Heya!! Friend !!

OTBA Questions:-

Theme 2:-quadrilaterals in architecture,WAH TAJ!!

1.D and E are midpoints of side ABand AC of a triangle ABCAnd O is any point on side OBand OC respectively, then prove that
-DEQP is a parallelogram.
-If AB=AC,then DECB is a isosceles triangle.

2.what properties of a quad makes them most popular choice for architects?.

3.prive that quad formed by hoping the midpoints of the adjacent sides of a rectangle is a rhombus .In the given figure given below that EFGH is are tangle and P,Q,R are midpoints on side EF,FG and HE respectively.

Hope it helps:)
For Q3.the figure is given below :)

Answer 2

U can check in mycbseguide