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In the figure, ΔPQR is right angled at Q, seg QS ⊥ seg PR. Find x, y.

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The perimeter of an arc of radius 4.2 cm is 12.8 cm. Determine the angle subtended by the arc at the centre of circle.
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In the following figure, XY = 10 cm and LT = 4 cm. Find the length of XT.

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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)
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In the given figure, m(arc NS) = 125°, m(arc EF) = 37°, find the measure ∠NMS.

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In the above figure `square`ABCD is a rectangle. If AB = 5, AC = 13, then complete the following activity to find BC.
Activity: ΔABC is a `square` triangle.
∴ By Pythagoras theorem
AB2 + BC2 = AC2
∴ 25 + BC2 = `square`
∴ BC2 = `square`
∴ BC = `square`
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Construct two concentric circles with centre O with radii 3 cm and 5 cm. Construct a tangent to a smaller circle from any point A on the larger circle. Measure and write the length of the tangent segment. Calculate the length of the tangent segment using Pythagoras' theorem.
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In the right-angled triangle ABC, Hypotenuse AC = 10 and side AB = 5, then what is the measure of ∠A?
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If tan θ = `12/5`, then 5 sin θ – 12 cos θ = ?
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From the information in the figure, complete the following activity to find the length of the hypotenuse AC.

AB = BC = `square`
∴ ∠BAC = `square`
Side opposite angle 45° = `square/square` × Hypotenuse
∴ `5sqrt(2) = 1/square` × AC
∴ AC = `5sqrt(2) xx square = square`
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AB, BC and AC are three sides of a right-angled triangle having lengths 6 cm, 8 cm and 10 cm, respectively. To verify the Pythagoras theorem for this triangle, fill in the boxes:
ΔABC is a right-angled triangle and ∠ABC = 90°.
So, by the Pythagoras theorem,
`square` + `square` = `square`
Substituting 6 cm for AB and 8 cm for BC in L.H.S.
`square` + `square` = `square` + `square`
= `square` + `square`
= `square`
Substituting 10 cm for AC in R.H.S.
`square` = `square`
= `square`
Since, L.H.S. = R.H.S.
Hence, the Pythagoras theorem is verified.
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There is a ladder of length 32 m which rests on a pole. If the height of pole is 18 m, determine the distance between the foot of ladder and the pole.
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A person starts his trip from home. He moves 24 km in south direction and then starts moving towards east. He travels 7 km in that direction and finally reaches his destination. How far is the destination from his home?
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Find the side of a square whose diagonal is `10sqrt2` cm.
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In the figure given above, `square`ABCD is a square and a circle is inscribed in it. All sides of a square touch the circle. If AB = 14 cm, find the area of shaded region.
Solution:
Area of square = `(square)^2` ......(Formula)
= 142
= `square "cm"^2`
Area of circle = `square` ......(Formula)
= `22/7 xx 7 xx 7`
= 154 cm2
(Area of shaded portion) = (Area of square) - (Area of circle)
= 196 − 154
= `square "cm"^2`
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Find the diagonal of a rectangle whose length is 16 cm and area is 192 sq.cm ?
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Find the side and perimeter of a square whose diagonal is `13sqrt2` cm.
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From given figure, In ∆ABC, AB ⊥ BC, AB = BC then m∠A = ?

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From given figure, In ∆ABC, AB ⊥ BC, AB = BC, AC = `2sqrt(2)` then `l` (AB) = ?

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From given figure, In ∆ABC, AB ⊥ BC, AB = BC, AC = `5sqrt(2)`, then what is the height of ∆ABC?

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