If the length of the diagonal of a square is 20cm,then its perimeter must be

a. 402cm     b. 302cm    c. 10cm    d. 152cm

The length of each side of a rhombus is 25 m and the length of one of its diagonals is 14 m. Find the area of the rhombus?

A triangle has a perimeter of 200. If two of its sides are equal and the third side is 20 more than the equal sides, what is the length of the third side?

A ladder 20 m long is leaning against a vertical wall. It makes an angle of 30 deg with the ground. How high on the wall does the ladder reach?

If the area of a semi-circle is 1925 sq.cm, then find its radius (in cm).

Find the area (in sq.cm) of a semi-circle of radius 14cm.

The perimeter and the breadth of a rectangle are 68 cm and 10 cm respectively. Calculate the length of its diagonal (in cm).

Which of the following is the correct option for the congruency of the two triangles ABC and PQR as per the SAS congruency criterion?

Find the maximum area of a rectangular field which is surrounded by a rope of 100 meters?