Question
Pulsars are
:Solution
Pulsars are celestial objects, thought to be rapidly spinning stars, that emits regular pulses of radio waves and other electromagneticradiationattherateofuptoone thousand pulses per second.
One chord of a circle is given as 21.5 cm. Then the radius (r) of the circle must be:
The length of a tangent from a point A at a distance 5 cms. from the centre of the circle is 4 cms. Radius of the circle is
The internal bisector of ∆ABC at ∠A cuts BC on D and cuts the circumcircle at E. If DE = 6cm, AC = 8cm and AD = 10 cm, then find the length of AB?
If angle between two sides of 3 cm & 2 cm of a triangle is 30°. what is the area of the triangle ?
If two complementary angles are in the ratio of 7:2, find the greater angle.
Find the area of the region enclosed by the curves : y = 0, x = |y| and y = |x - 2|.
A cuboid of size 50 cm × 40 cm × 30 cm is cut into 8 identical parts by 3 cuts. What is the total surface area (in cm2) of all the 8 parts?...
The lengths of three medians in a triangles are 24 cm, 32 cm, 40 cm. What is the area of that traingle (in cm 2 )?
In the given figure, AB, AE, EF, FG and GB are semicircles. AB = 56 cm and AE = EF = FG = GB. What is the area (in cm2) of the shaded region?...
- In a ΔPQR, PS is the angle bisector of ∠RPQ. If PQ = 12 cm, RP = 21 cm and QR = 22 cm. Find the length of QS.