If two complementary angles are in the ratio of 2:3. find the ratio of square of smaller angle to square of greater?

(2x + 4) and (x - 1) are the angle pairs of angles of measurement, then their measurement will be

In triangle PQR, points A, B and C are taken on PQ, PR and QR respectively such that QC = AC and CR = CB. If ∠QPR = 40°, then ∠ACB is equal to: 

The lengths of one side of a rhombus and one of the two diagonals are 6 cm each. Find the area of the rhombus (in cm²). 

If the sum of the interior angles of a regular polygon be 1080 °, the number of sides of the polygon is 

Equation of the straight line parallel to x-axis and also 3 units below x-axis is: 

Ratio of the number of sides of two regular polygons is 5 : 6 and the ratio of their each interior angle is 24 : 25. Then the number of sides of these two polygons are 

PT is a tangent at the point R on a circle with centre O. SQ is a diameter, which when produced meets the tangent PT at P. If ∠SPT=32°, then what will be the measure of ∠QRP?