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z + 1/z = 2 then z =1 So z105 + 1/z105 = 1105 + 1/1105 = 1+1 = 2 ` `
The lengths of three medians in a triangles are 21 cm, 28 cm, 35 cm. What is the area of that traingle (in cm 2 )?
The length of the each side of an equilateral triangle is 10.5 cm. The area of incircle, (cm 2 ) is
In a triangle ABC, the incenter is at O. Find angle BAC if angle BOC=115°.
What will be inradius of an equilateral triangle of side 12 cm?
What will be inradius of a right angle triangle whose base is 13 cm & height is 84 cm ?
The area of the largest triangle inscribed in a semi-circle of radius R is-
Find the area of triangle having sides 5 m, 6 m, and 9 m.
Find the area of triangle having sides in the ratio 3:5:7 & the perimeter of the triangle is 60 cm