In the figure above, triangle PQR is a similar to triangle XYZ (not shown) . IF `PQ:XY=QR:YZ=PR:XZ=4:5`, what is the measure , in degrees, of angle Y?

In the figure above, triangle XYZ is a right triangle with XZ=3. If tanm=sqrt3 , what is YZ?

In the figure above, Delta ABC is similar to Delta XYZ , what is the value of cos A?

A circle passing through points Q and R of triangle PQR, cut the sides PQ and PR at point X and Y respectively. If PQ = PR, then what is the value (in degrees) of angle PRQ + angle QXY ?

In a triangle PQR , angle Q = 90^(@) . If PQ = 12 cm " and " QR = 5 cm, then what is the radius ( in cm ) of the circumcircle of the triangle ?

Triangle PQR is such that PR = 75 cm and triangle PQR is similer to triangle XYZ. If XY = 18 and YZ =12 cm then find the ratio of PQ : QR . Options are (A) 1:2 (B) 3:2 (C) 4:5 (D) 5:2

In right-angled triangle PQR , if hypotenuse PR = 12 , PQ = 6 then what is the measure of /_ P ?