The area of triangle whose sides are 3cm, 4cm and 5cm is
5 cm2
6 cm2
7 cm2
8 cm2
The base of the traingle is 15dm and its height is 12dm. The height of another triangle of double the area and the base of which is 20 dm is
9 dm
18 dm
8 dm
12.5dm
If one side of an equilateral triangle is 4cm. Then its area =
9√3 cm2
8√3 cm2
4√3 cm2
√3 cm2
In a right triangle with sides x and y, hypotenuse z, the altitude drawn on the hypotenuse is a, then
xy = a2
1/x + 1/y = 1/a
x2 + y2 = 2a2
The area of an equilateral triangle is numerically equal to its perimeter . Find the length of its side.
√3 units
2√3 units
3√3 unit
4√3 unit
Δ ABC shown below is inscribed inside a square of side 20cm. Find the area of the triangle
50cm2
100cm2
200cm2
225cm2
Area of an equilateral triangle with side x is
1/2 x2
x2
4/3 x2
A square and an equilateral triangle have equal perimeters. If the diagonal of the square is , then the area of the triangle is
None of these
Area of a triangle if its base, b and height, h are given is
1/2 bh
bh
b2h
1/2 bh2
Heron's formula is
