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Let the total applied =a and selected=s Therefore not selected=a-s s/(a-s) =2/1 s=2a-2s 3s=2a s=(2/3)a Also given (s-25)/(a-s-25)=9/4 (2a-75)/(a-75)=9/4 8a-300=9a-675 a=375
A △ ABC has sides 5 cm, 6 cm and 7 cm. AB extended touches a circle at P and AC extended touches the same circle at Q. Find the length (in cm) of AQ.
In a ΔDEF, ∠D = 45°, ∠E = 2∠F. What is the value of ∠F?
In a triangle, the lengths of two sides are 13 cm and 14 cm, and the included angle between them is 60°. Find the area of the triangle.
The inner-radius of a triangle is 5 cm, and the sum of lengths of its sides is 60 cm. What is the area of the triangle (in sq. cm.)?
An equilateral triangle has all sides of length 14√3 cm. What is the altitude of this triangle?
The parallel sides of a trapezium and its height are in an arithmetic progression with a common difference of 4. If the height is the highest term and t...
ABC is an equilateral triangle with sides of 24cm. Find the difference between its in-radius and circum-radius.
In an equilateral triangle, the length of the side is 18 cm. A circle is inscribed in the triangle. Find the radius of the circle.