First product of urea hydrolysis in soil

In ΔABC, PQ is parallel to BC If AP: PB= 3:5 and AQ= 3 cm, AC is equal to?

If in a right angle triangle ABC, Angle B is a right angle. AB = 8 cm, BC= 15cm if BD is perpendicular to AC find the length of BD? 

If in a ΔABC, AD is internal angle bisector & D is a point on BC, AB = 7 cm, BC = 9cm then what is BD:CD?

If the area and sum of parallel side of a trapezium are 96 cm² and 96cm respectively. Then the distance between the parallel sides is.

If G is the centroid and AD, BE, CF are three medians of ∆ABC with area 108 cm² , then the

area of ∆EFG is?

If I is the incentre of ΔABC , if  ∠ BAC = 80⁰ , then what is the measure of  ∠ BIC?

PQRS is a cyclic quadrilateral of which PQ is the diameter. Diagonals PR and QS intersect at A. If SQR = 25°, then angle PAS measures

In ∆ABC , G is the centroid , AB = 18 cm, BC= 24 cm and AC = 30 cm , find GD, where D is the mid-point of BC?