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Mathematics
14. Quadrilaterals
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Q20 of 95 Page 15

Fill in the blanks to make the following statements correct:

(i) The triangle formed by joining the mid-points of the sides of an isosceles triangle is…..


(ii) The triangle formed by joining the mid-points of the sides of a right triangle is…..


(iii) The figure formed by joining the mid-points of consecutive sides of a quadrilateral is……

(i) isosceles.

(ii) Right triangle.


(iii) Parallelogram.


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18

BM and CN are perpendiculars to a line passing through the vertex A of a triangle ABC. If L is the mid-point of BC, prove that LM=LN.

19

Show that the line segments joining the mid-points of the opposite sides of a quadrilateral bisect each other.

1

In a parallelogram ABCD, write the sum of angles A and B.

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In a parallelogram ABCD, if ∠D=115°, then write the measure of ∠A.

Questions · 95
14. Quadrilaterals
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