In an isosceles triangle `A B C` , if `A B=A C=25 c m` and `B C=14 c m` , then the measure of altitude from `A` on `B C` is (a) 20cm (b) 22cm (c) 18cm (d) 24cm

If A B C D E F such that D E=3c m , E F=2c m , D F=2. 5 c m , B C=4c m , then perimeter of A B C is (a) 18cm (b) 20cm (c) 12cm (d) 15cm

Find B and C of a triangle ABC, if b = 2 cm, c = 1 cm and A=60^(@) .

The lengths of the diagonals of a rhombus are 24cm and 32cm, then the length of the altitude of the rhombus is: (a) 12 cm (b) 12.8 cm (c) 19 cm (d) 19.2 cm

A B C D is a trapezium in which A B D Cdot If a r( A B D)=24\ c m^2a n d\ A B=8\ c m , then height of A B C is 3 cm (b) 4 cm (c) 6 cm (d) 8 cm

The base of triangle is 15 cm and height is 12 cm. The height of another triangle of double the area having base 20cm is (a) 22 cm (b) 20 cm (c) 18 cm (d) 10 cm

If the area of a triangle is 1176 cm2 and base : corresponding altitude is 3 : 4, then the altitude of the triangle is (a) 42 cm (b) 52 cm (c) 54 cm (d) 56 cm

If the perimeter of a square is 40cm, then the length of its each side is 20cm (b) 10cm (c) 5cm (d) 40cm

In Fig. 10.97, the sides A B ,\ B C and C A of triangle A B C , touch a circle at P ,\ Q and R respectively. If P A=4c m , B P=3c m and A C=11 c m , then length of B C is (FIGURE) (a) 11cm (b) 10cm (c) 14cm (d) 15cm

Find the perimeter of each of the following shapes: An equilateral triangle of side 9cm. An isosceles triangle with equal side 8cm each and third side 6cm. An isosceles triangle A B C , with A B=A C=10 c m and altitude from A on B C equal to 8cm. A regular hexagon with each side measuring 8cm.

ABCD is a rectangle and ABE is a triangle whose vertex E lies on CD .If AB=5cm and the area of the triangle is 10sq.cm, then the perimeter of the rectangle is (a) 14cm(b)15cm(c)18cm(d)20cm