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Question 1
ABC is a equilateral triangle. O is the point of intersection of altitudes AL, BM and CN. If OA = 16 cm, then what is the semi-perimeter (in cm) of the triangle ABC?
Question 2
A chord AB of circle 
of radius 
cm touches a circle 
which is concentric to 
at a single point. If the radius of 
is 
cm. The length of AB is:
of radius cm touches a circle which is concentric to at a single point. If the radius of is cm. The length of AB is:Question 3
Point P is the midpoint of segment AB. Co-ordinates of point P are (2,1) and point A are (11,5). Co-ordinates of point B are
Question 4
ABC is a right angled triangle. B being the right angle. Midpoints of BC and AC are respectively B' and A'. Area of ∆A'B'C' is
Question 5
In a triangle the length of the side opposite the angle which measures 45 ° is 8 cm, what is the length of the side opposite to the angle which measures 90 °?
Question 6
O is the centre of a circle. AB is a chord of the circle but not its diameter. OC is perpendicular to AB. if OC = CB and radius of the circle be 7 cm, then the length of AB is
Question 7
In triangle PQR, the sides PQ and PR are produced to A and B respectively. The bisectors of ∠AQR and ∠BRQ intersect at point O. If ∠QOR = 50°, then what is the value (in degrees) of ∠QPR?
Question 8
ΔABC is right angled at B BD is the altitude. AD is 18 cm and DC is 50 cm. Find length of BD?
Question 9
There are two identical circles of radius 10 cm each. If the length of the direct common tangent is 26 cm, then what is the length (in cm) of the transverse common tangent?
Question 10
In the following triangle ΔPQR if PD ⊥ RQ & PE is Bisector of RPQ then find the angle PEQ = ?
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Oct 26CDS & Defence
