Determine the area of the triangle whose vertices lie on the co-ordinates (2, 4), (4, 2), (-2, -5)
ABC is a right angled triangle, right angled at C and p is the length of the perpendicular from C on AB. If a, b and c are the lengths of the sides BC, ...
Two sides of a triangle are 10 cm and 15 cm. Which of the following can be the third side of the triangle?
The area of a triangle is 216 cm² and the ratio of its sides is 9: 12: 15. What is the perimeter of the triangle?
ABC is an equilateral triangle with sides of 24cm. Find the difference between its in-radius and circum-radius.
The corresponding medians of two similar triangles are 12 cm and 15 cm. If the area of the first triangle is 288 cm, then find the area of the second tr...
In a triangle ABC, the incenter is at O. Find angle BAC if angle BOC=120°.
The area of an equilateral triangle is 64√3 cm2. Find the radius of the circle that circumscribes the triangle.
Two triangles DEF and XYZ are congruent to each other such that DE = 10 cm, YZ = 24 cm, and ∠DEF = ∠XYZ = 90⁰. Find the circumradius of ΔDEF.
...The base of a triangular plot is 25 meters, and its height is 30 meters. If a path of 2 meters wide is to be built around the plot, what will be the are...
