In Fig. 10.80, the perimeter of ` A B C` is (FIGURE) (a) 30cm (b) 60cm (c) 45cm (d) 15cm

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

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

In Fig.10.90,PR=( FIGURE ) (a) 20cm(b)26cm(c)24cm(d)28cm

If ABCDEF such that AB=9.1cm and DE=6.5cm. If the perimeter of DEF is 25cm, then the perimeter of ABC is (a) 36cm (b) 30cm(c)34cm(d)35cm

The area of a square is three-fifths the area of a rectangle.The length of the rectangle is 25cm and its breadth is 10cm less than its length.What is the perimeter of the square? (a) 44cm (b) 60cm (c) 80cm (d) Cannot be determined (e) None of these

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

In Fig. 10.87, two equal circles touch each other at T , if Q P=4. 5 c m , then Q R= (FIGURE) (a) 9cm (b) 18cm (c) 15cm (d) 13.5cm

If three metallic spheres of radii 6 cm, 8 cm and 10 cm are melted to form a single sphere, the diameter of the sphere is (a) 12 cm (b) 24 cm (c) 30 cm (d) 36 cm

The area of a square with perimeter 48 cm is (a) 144 sq. cm (b) 156 sq. cm (c) 170 sq. cm (d) 175 sq. cm

If three metallic spheres of radii 6 cm, 8 cm and 10 cm are melted to form a single sphere, then the diameter of the new sphere will be (a) 12 cm (b) 24 cm (c) 30 cm (d) 36 cm