Subject: Maths, asked on 26/2/18

## Q41.

Subject: Maths, asked on 26/2/18

## Q.6. PQR is a right angels triangle right angled at P. M is a point on QR such that PM$\perp$QR. Show that 2 PM = QM . MR

Subject: Maths, asked on 26/2/18

## Pls answer sombody

Subject: Maths, asked on 25/2/18

## Q25

Subject: Maths, asked on 25/2/18

## No.18 ​Q18. In the given figure, $\angle$M = $\angle$N = 46, express x in terms of a, b and c where a, b and c are length of LM : PA = _____________ .    (A) x =                                  (B)  x =$\frac{\mathrm{a}+\mathrm{b}}{\mathrm{ac}}$        (C) n =                                   (D)

Subject: Maths, asked on 25/2/18

## triangle abc is right angled at E prove that AB2+AD2= 2AD2 + 1/2 BC2

Subject: Maths, asked on 24/2/18

## Solve this :

Subject: Maths, asked on 24/2/18

## D is a point on side BC of triangle ABC such that BD/CD =AB/AC . prove that AD bisects angle BAC

Subject: Maths, asked on 24/2/18

## Solve this: Question No. 3 In the given figure, $\angle A=\angle D=90°$ Prove that: $A{B}^{2}+A{D}^{2}+A{C}^{2}=B{D}^{2}+D{C}^{2}+3BD×DC$

Subject: Maths, asked on 24/2/18

## Please do this sum

Subject: Maths, asked on 23/2/18

## in triangle abc D is a point on side ac  such that bc^2=ac.ad  prove that bd=bc

Subject: Maths, asked on 23/2/18

## Q 14 17 and 18 ​Q14. Write HCF and LCM of the smallest odd composite number and the smallest odd prime number. If an odd number p divides q2 , then will it divide q3 also? Explain. Q17. ABC is an isosceles triangle is which AB = AC = 10 cm and BC = 12 cm. PQRS is a rectangle inside the isosceles triangle. if PQ = SR = Y cm, PS = QR = 2x, then prove that x = 6 – 3y/4. Q18. In $∆$ABC, let D be a point on BC such that $\frac{\mathrm{BD}}{\mathrm{DC}}=\frac{\mathrm{AB}}{\mathrm{AC}}$. Prove that AD is the bisector of $\angle A$. Q 14 17 and 18

Subject: Maths, asked on 22/2/18

## Show that line segment joining mid points of oblique sides of trapezium is parallel to parallel sides .

Subject: Maths, asked on 22/2/18

## EXAMPLE 44 In Fig. 4.127, if , prove that $△$ABC is a right triangle.

Subject: Maths, asked on 22/2/18

## Q16. In an equilateral triangle, prove that three times the square of one side is equal to four times  the square of one of its altitudes.

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