Question

This is a kind of question paper pls try to answer all the questions

1)In a triangle ABC , side BC is produced to D ∠A = 45 degree and exterior angle ACD=115 degree . Find angles ∠B and ∠BCA
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2) PQRS Is a square and T and U are respectively the mid points of PS and QR. If PQ =8CM , Find the area of ∆OTS
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3) ABCD is a parellelogram , prove that ar(∆BCP) = ar(∆DPQ) , if BC=CQ
Hints 1. what does the median do the area of triangles?
2. PT ∆QPC≅∆APD.
3.CPCT and apply hint twice.
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4) D is the mid point of the hypotunes AC of A right angle ABC, right angled at B. Prove that BD = ½AC . Hints 1) Locate mid point D of hypotunes AC.
2)Join BD and produce it to E such that BD=DE.
3)Join EC
4) Apply congruence first between traingles ABD and CDE.
5) Use CPCT and apply congruence between ∆ECB and ∆ABC.
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5)Name all 4 sided figures (quadrilateral) u know.
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6)Write the properties of a parellellogram.
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7)ABC is a right angled traingle angled at B . Angle BAC is doubled angle BCA. Prove That AC=2BA. Hint : Construct ∆CBD such that BD=BA.
2)Prove That ∆CBA≅∆CBD
3) evaluate the angles a , d and angle DCA.
4)Conclude DB=AB
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8)a. State and prove the mid point theorem.
b.In ∆ABC , D is te mid point f AB and E is the midpoint of AC. If DE=3cm , what is the value of BC.
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9)ABCD is a rhombus of side 5cm. Diagonals AC and BD intersect at E. If AE = 4cm, find the value of the diagonal BD .
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10) ABCD is the square of the side 10cm . Find the value of diagonals AC and BD. What is the area of the square ?
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11) ABCD is a rectangle of sides 4cm and 3cm. Find the length of the diagonals AC and BD. What is the perimeter pf ABCD.
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12)Construct a triangle ABC in which BC= 5cm , AB= 6cm and CA = 7cm . Measure angle ABC

Answer 1

Answer:

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