৫৯৩১
The area of a rectangular classroom is x2 - 25. Which of the following binomials could represent the length and the width of the room.
উত্তর
(x + 5) (x - 5)
৫৯৩৫
The distance from the centre of a circle of radius 5 cm to a chord of lengh 8 cm is-
উত্তর
3 cm
৫৯৩৭
If the radius of a sphere is increased by 10%, how much will the surface area be increased in percentage?
উত্তর
21%