Geometry & Mensuration

Q61.A circle touch the triangle from inside is called :

Q62.The total perimeter of a semicircle is 20.6 cm. What is the approximate radius of the semicircle?

Q63.The perimeter of an equilateral triangle is 24 cm. What is the length of one side of the triangle?

Q64.The exterior angle of a triangle is 80 degrees and the interior opposite angles are in the ratio 1:3. The interior angles measure:

Q65.The angle made by two lines is called:

Q66.A polygon that consists of 8 sides is called:

Q67.A measure of angle which is the complement of itself is:

Q68.A triangle has ______ vertices.

Q69.The sum of three angles of an isosceles triangle is:

Q70.Which of the following is the longest chord of a circle?

Q71.If a rectangle has length 12 cm and width 8 cm, what is its area?

Q72.What is the perimeter of a square with an area of 64 cm²?

Q73.If the area of a circle is 9√3 find its circumference?

Q74.If each interior angle of a polygon is 162 calculate the number of sides?

Q75.The surface area of a cube is 96cm. what is the volume of the cube?

Q76.The area of a rectangular field is 17 m by 13 m. If the cost of tiling is 70 per square meter, what is the total cost of tiling the field?

Q77.The area of right angled triangle is 42 cm3. If perpendicular is 10 cm, then find the base ?

Q78.Approximate area of Pakistan is ?

Q79.Parallelogram has a side 15cm and 10cm. Find the perimeter:

Q80.Area of equilateral triangle is 243/16, find the length of side of triangle :