solve the following examples.
(1) Find the height of an equilateral triangle having side 2a.
(2) Do sides 7 cm, 24 cm, 25 cm form a right angled triangle ? Give reason.
(3) Find the length a diagonal of a rectangle having sides 11 cm and 60cm.
(4) Find the length of the hypotenuse of a right angled triangle if remaining
sides are 9 cm and 12 cm.
(5) A side of an isosceles right angled triangle is x. Find its hypotenuse.
(6) In A PQR; PQ = V8, QR = 15 , PR = 13. Is A PQR a right angled triangle ?
If yes, which angle is of 90°? please give answer honestly.:-)
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Answer:
height of equilateral triangle is under root 3 a
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