Angles of a triangle are in the ratio 5 : 6 : 7. Find the measure of the smallest angle.
Right triangle with sides 15 cm, 20 cm, 25 cm. Find radius of incircle.
If in a ΔABC, the external angle bisector of angle A, meets BC when extended at a point D, BD = 5cm , BC = 3 cm then what is AB:AC ?
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 )?
A regular polygon has an interior angle of 144°. How many sides does the polygon have?
If I is the incentre of ΔABC , if ∠ BIC = 1200 , then what is the measure of ∠ BAC?
- Length of a chord in a circle of radius 'r' cm, is 40 cm and distance between chord and centre of the circle is 21 cm. Find the value of (2r + 1).
Find the area of triangle having sides 20 m, 21 m, and 29 m.
In a rectangle ABCD, ‘P’ is a point inside the rectangle. If PA = 8 cm, PC = 6 cm and PB = 5 cm, then find PD.