
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN: 9780134463216
Author: Robert F. Blitzer
Publisher: PEARSON
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Transcribed Image Text:il VOLTE
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Janhavi K School
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1. If the bisectors of angles of a quadrilateral
enclose a rectangle, then show that it is a
parallelogram.
2. L, M, N, K are mid-points of sides BC, CD, DA and
AB respectively of square ABCD, prove that DL, DK,
BM and BN enclose a rhombus.
3. PQRS is a parallelogram. PS is produced to meet
M so that SM = SR and MR is produced to meet PQ
produced at N. Prove that QN= QR.
4. In a AABC, DE is parallel to BC and D is the mid-
point of side AB. Find the perimeter of AABC when AE
= 4.5 cm, DE = 5 cm and DB = 3.5 cm.
5. If an angle of a parallelogram is 4/5 of it adjacent
angle, then find the measures of all the angles of the
parallelogram.
6. ABCD is a trapezium in which AB is parallel to CD.
If LA = 36° and LB = 81°, then find LC and LD.
7. In a AABC, DE is parallel to BC and D is the mid-
point of side AB. Find AE and BC if DE = 6 cm and EC
= 5 cm.
8. In a parallelogram ABCD find the measure of all
the angles if one angle measures 68°.
9. The lengths of diagonals of a rhombus are 24 cm
and 18 cm respectively. Find the length of each side
of the rhombus.
10. In a parallelogram ABCD find the measure of all
the angles if one its angles is 15° less than twice the
smallest angle.
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