MEDIUM
10th West Bengal Board
IMPORTANT
Earn 100

Prove that if a straight line drawn from the centre of a circle is perpendicular to chord (other than diameter) then perpendicular bisect the chord.

Important Questions on First Summative Test

MEDIUM
10th West Bengal Board
IMPORTANT
From a right circular wooden log of length 21 m and diameter 122 m  a wooden log of square cross section is formed by minimum wastage of wood.what is the amount of wood in it.(take π=227)
MEDIUM
10th West Bengal Board
IMPORTANT
Height of a right circular cylinder is twice of its radius. If the height would be 6 times of its radius, then the volume of the cylinder would be greater by 539 dcm3 more.Find the height of the cylinder.(Take π=227)
MEDIUM
10th West Bengal Board
IMPORTANT
The interest of x in z years at the rate of y% simple interest per annum is
MEDIUM
10th West Bengal Board
IMPORTANT
The compound interest of x in n years at the rate of r% per annum is
MEDIUM
10th West Bengal Board
IMPORTANT
The quadratic equation whose both roots are 1 is
MEDIUM
10th West Bengal Board
IMPORTANT
If mn-m=74, then the value of mn is
MEDIUM
10th West Bengal Board
IMPORTANT
The measure of the angle on the semicircle is
MEDIUM
10th West Bengal Board
IMPORTANT
AB is a diameter of a circle with center OP is a point on its circumference. If APO=40°, then the value of PBO is