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Mathematics Standard 9>Chapter 4 - Geometry>Exercise>Q 4

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9th Tamil Nadu Board

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The lengths of the diagonals of a rhombus are $12 cm$ and $16 cm$ . Find the side of the rhombus.

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Important Questions on Geometry

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9th Tamil Nadu Board

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Mathematics Standard 9>Chapter 4 - Geometry>Exercise>Q 5

Show that the bisectors of angles of a parallelogram form a rectangle.

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9th Tamil Nadu Board

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Mathematics Standard 9>Chapter 4 - Geometry>Exercise>Q 6

If a triangle and a parallelogram lie on the same base and between the same parallels, then prove that the area of the triangle is equal to half of the area of parallelogram.

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9th Tamil Nadu Board

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Mathematics Standard 9>Chapter 4 - Geometry>Exercise>Q 7

Iron rods $a, b, c, d, e$ , and $f$ are making a design in a bridge as shown in the figure. If $a ∥ b, c ∥ d, e ∥ f$ , find the marked angles between $b$ and $c$ .

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9th Tamil Nadu Board

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Mathematics Standard 9>Chapter 4 - Geometry>Exercise>Q 7

Iron rods $a, b, c, d, e$ , and $f$ are making a design in a bridge as shown in the figure. If $a ∥ b, c ∥ d, e ∥ f$ , find the marked angles between $d$ and $e$ .

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MEDIUM

9th Tamil Nadu Board

IMPORTANT

Mathematics Standard 9>Chapter 4 - Geometry>Exercise>Q 7

Iron rods $a, b, c, d, e$ , and $f$ are making a design in a bridge as shown in the figure. If $a ∥ b, c ∥ d, e ∥ f$ , find the marked angles between $d$ and $f$ .

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MEDIUM

9th Tamil Nadu Board

IMPORTANT

Mathematics Standard 9>Chapter 4 - Geometry>Exercise>Q 7

Iron rods $a, b, c, d, e$ , and $f$ are making a design in a bridge as shown in the figure. If $a ∥ b, c ∥ d, e ∥ f$ , find the marked angles between $c$ and $f$ .

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9th Tamil Nadu Board

IMPORTANT

Mathematics Standard 9>Chapter 4 - Geometry>Exercise>Q 8

In the given figure, $∠ A = 64 °, ∠ A B C = 58 °$ . If $B O$ and $C O$ are the bisectors of $∠ A B C$ and $∠ A C B$ respectively of $△ A B C$ , find $x °$ and $y °$ .

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9th Tamil Nadu Board

IMPORTANT

Mathematics Standard 9>Chapter 4 - Geometry>Exercise>Q 9

In the given figure, if $A B = 2, B C = 6, A E = 6, B F = 8, C E = 7$ and $C F = 7$ , then compute the ratio of the area of quadrilateral $A B D E$ to the area of $△ C D F$ .