In the given figure, what is the radius of the inscribed circle? `3/2` (b) `5/2` (c) `7/5` (d) none of these

The lines 12 x-5y-17=0&24 x-10 y+44=0 are tangents to the same circle. Then the radius of the circle is: 1 (b) 3/2 (c) 2 (d) none of these

Which of the following is a proper fraction? 3/5 (b) 5/3 (c) 1 2/3 (d) None of these

Which of the following is a proper fraction? 3/5 (b) 5/3 (c) 1 2/3 (d) None of these

If in a triangle, the area is numerically equal to the perimeter, then the radius of the inscribed circle of the triangle is (a) 1 (b) 1.5 (c) 2 (d) 3

9. 02-5. 7=\ ? 3.32 (b) 3.23 (d) 2.32 (d) None of these

In the given figure, PQR is a quadrant whose radius is 7 cm. A circle is inscribed in the quadrant as shown in the figure. What is the area (in cm^(2) ) of the circle

The diameter of a circle is 3.5 cm. What is the circumference of the circle? (a) 11 cm (b) 22 cm (c) 38.5 cm (d) 45.2 cm (e) None of these

If 25 a+25 b=115 , what is the average of a and b ? (a) 2.5 (b) 3.4 (c) 4.5 (d) 4.6 (e) None of these

In the given figure, B and C are the centres of the two circles. ADE is the common tangent to the two circles. If the ratio of the radius of both the circles is 3 : 5 and AC = 40, then what is the value of DE?