Goa Board (GBSHSE) - Class 9

Number Systems, Coordinate Geometry & Calculus Basics question bank (Mathematics (Class 9))

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Q1.

Geometry (Circle Tangents & Thales): In 'Real Numbers, Irrational Numbers and Laws of Radicals', tangents drawn from an external point to a circle are:

(A)
Equal in length and subtend equal angles at the centre (Real Numbers, Irrational Numbers and Laws of Radicals)
(B)
Perpendicular to each other always
(C)
Unequal in length
(D)
None of these
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Q2.

Coordinate Geometry & Distance: What is the distance between points $(x_1, y_1)$ and $(x_2, y_2)$ in 'Real Numbers, Irrational Numbers and Laws of Radicals'?

(A)
$\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}$ (Real Numbers, Irrational Numbers and Laws of Radicals)
(B)
$(x_2 - x_1) + (y_2 - y_1)$
(C)
$(x_1 x_2 + y_1 y_2)$
(D)
None of these
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