Two circles with radii of 7 cm and 28 cm touch each other externally. Find the length of their common tangent.
1). 36 cm
2). 28 cm
3). 35 cm
4). 6 cm
The line passing through (2, -1) and (y, -2) is parallel to the line passing through ( -3, 4) and (0, 3). Find y?
What is the slope of the line perpendicular to the line passing through the points (3, -2) and (4, 2)?
1). 1/4
2). 4
3). -4
4). -1/4
The in-radius of triangle is 5 cm and its area is 49 sq. cm. the perimeter of the triangle is
A triangle is inscribed in a circle and the diameter of the circle is its one side. Then the triangle will be