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Prove that, tangent segments drawn from an external point to the circle are congruent.
Concept: Tangent Segment Theorem
In a parallelogram ABCD, ∠B = 105°. Determine the measure of ∠A and ∠D.
Concept: Tangent Segment Theorem
In the following figure, XY = 10 cm and LT = 4 cm. Find the length of XT.

Concept: Tangent Segment Theorem
Find the value of y, if the points A(3, 4), B(6, y) and C(7, 8) are collinear.
Concept: Circles Passing Through One, Two, Three Points
A pizza has 8 slices all equally spaced. Suppose pizza is a flat circle of radius 28 cm, find the area covered between 3 slices of pizza.
Concept: Secant and Tangent

A circle touches side BC at point P of the ΔABC, from outside of the triangle. Further extended lines AC and AB are tangents to the circle at N and M respectively. Prove that : AM = `1/2` (Perimeter of ΔABC)
Concept: Tangent Segment Theorem
Draw an equilateral ΔABC with side 6.2 cm and construct its circumcircle
Concept: Construction of Similar Triangle
Find the length of the altitude of an equilateral triangle with side 6 cm.
Concept: Construction of Similar Triangle
Draw a triangle ABC with side BC = 6cm, ∠B = 45° and ∠A = 100°, then construct a triangle PBQ whose sides are `7/4` times the corresponding sides of ΔABC.
Concept: Construction of Similar Triangle
Draw ΔRSP ∼ ΔTQP. In ΔTQP, TP = 5 cm, ∠P = 50°, PQ = 4.5 cm and `("RS")/("TQ") = 2/3`.
Concept: Construction of Similar Triangle
Construct any ΔABC. Construct ΔA'BC' such that AB : A'B = 5 : 3 and ΔABC ∼ ΔA'BC'.
Concept: Construction of Similar Triangle
Construct the circumcircle and incircle of an equilateral triangle ABC with side 6 cm and centre O. Find the ratio of radii of circumcircle and incircle.
Concept: Division of a Line Segment
∆AMT ~ ∆AHE. In ∆AMT, AM = 6.3 cm, ∠TAM = 50°, AT = 5.6 cm, `(AM)/(AH) = 7/5`. Construct ∆AHE.
Concept: Division of a Line Segment
∆ABC ~ ∆LBN. In ∆ABC, AB = 5.1 cm, ∠B = 40°, BC = 4.8 cm, \[\frac{AC}{LN} = \frac{4}{7}\]. Construct ∆ABC and ∆LBN.
Concept: Division of a Line Segment
Construct ∆PYQ such that, PY = 6.3 cm, YQ = 7.2 cm, PQ = 5.8 cm. If \[\frac{YZ}{YQ} = \frac{6}{5},\] then construct ∆XYZ similar to ∆PYQ.
Concept: Division of a Line Segment
Find the distance between the following pairs of point.
W `((- 7)/2 , 4)`, X (11, 4)
Concept: Distance Formula
Determine whether the points are collinear.
P(–2, 3), Q(1, 2), R(4, 1)
Concept: Distance Formula
Show that the points A(1, 2), B(1, 6), C(1 + 2`sqrt3`, 4) are vertices of an equilateral triangle.
Concept: Distance Formula
Find the ratio in which point T(–1, 6)divides the line segment joining the points P(–3, 10) and Q(6, –8).
Concept: Division of a Line Segment
Find the co-ordinates of the points of trisection of the line segment AB with A(2, 7) and B(–4, –8).
Concept: Division of a Line Segment
