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In the adjoining figure , Delta PQR is a...

In the adjoining figure , `Delta PQR` is an equilateral triangle. QR = RN . Prove that `PN^(2) =3PR^(2)`

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CHETAN PUBLICATION-PYTHAGORAS THEOREM-PROBLEMS FOR PRACTICE
  1. In Delta XYZ, angle y = 90^(@), angle Z = a^(@), angle x = (a + 30 ^(@...

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  2. In the adjoining figure, angle L = angle MNK = 90^(@), angle MKL = 30^...

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  3. Sides of triangles are given below. Determine which of the them are ri...

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  4. A ladder 10 m long reaches a window 8 m above the ground. Find the dis...

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  5. E is a point on hypotenuse dF of Delta DFH, such that seg HE bot seg D...

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  6. In adjoining figure, seg AD bot side BC, B-D-C. Prove that AB^(2) + CD...

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  7. In the adjoining figure, angle PQR = 90^(@) "seg" QS bot side PR, PS =...

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  8. Delta DEF is an "equilateral triangle"."Seg" DP bot side EF. E- P - F....

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  9. Delta PQR is an "equilateral triangle", "seg" PM bot side QR, Q -M- R ...

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  10. In the adjoining figure, seg BD bot "side" AC, C-D-A. "Prove that" : A...

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  11. In Delta PQR, M is "the midpoint of" side QR. If PQ = 11, PR = 17 "and...

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  12. In Delta ABC, AP is a "median". If AP = 7,AB^(2) + AC^(2) = 260 "find"...

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  13. In Delta ABC, AB^(2) + AC^(2) = 122 and BC = 10 Find the length of the...

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  14. Adjacent sides of a parallelogram are 11 cm and 17 cm. If the length o...

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  15. If 'O' is any point in the interior of rectangle ABCD, then prove that...

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  16. In the adjoining figure , Delta PQR is an equilateral triangle. QR = R...

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  17. In the adjoining figure, angle PQR = 90^(@)T is the midpoint of side Q...

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