If the length of a median of an equilateral triangle is x cm, then its area is
1) x² 2) Ö3x² / 2 3) x² / Ö3 4) x² / 2
PQ is a tangent to a circle with centre O at the point P. If triangle OPQ is an isosceles triangle , then angle OQP is equal to
1) 30° 2) 90° 3) 45° 4) 60°
The sides of a triangle are 16 cm, 30 cm, 34 cm. Its area is 1) 225 cm² 2) 225Ö3 cm² 3) 225Ö2 cm² 4) 240 cm²
A point O is at a distance of 10 cm from the centre of a circle of radius 6 cm. How many tangents can be drawn from point O to the circle ?
1) 1 2) 3 3) infinite 4) 2
The length of each side of an equilateral triangle of area 4Ö3 cm², is
1) 8 cm 2) 4 cm 3) Ö3 / 4 cm 4) 3 cm
If TP and TQ are two tangents to a circle with centre O so that angle POQ = 110° then angle PTQ is equal to
1) 60° 2) 80° 3) 70° 4) 90°