The area of the largest circle that can be drawn inside a rectangle with sides 18cm and 14cm is_________?
A. 49 Sq.cm
B. 154 Sq.cm
C. 378Sq.cm
D. 1078 Sq.cm
Basic Arithmetic
he perimeter of a circle and a square field are equal. What is the diameter of the circle field if the area of the square field is 484 sq.m?
A. 14m
B. 21m
C. 28m
D. None of these
The perimeter of circle field and a square field are equal. If the area of these square field is 12100m2, the area of a circular field will be_________?
A. 15500Sq.m
B. 15400Sq.m
C. 15200Sq.m
D. 15300Sq.m
The difference between the radi of the smaller circle and the bigger circle is 7cm and the difference between the area of two circles is 1078Sq.cm Radius of the smaller circle is_________?
A. 17.5cm
B. 21cm
C. 28cm
D. None of these
The area of a circle is increased by 22Sq.cm when it’s radius is increased by 1cm. The original radius of the circle is_________?
A. 6cm
B. 3.2 cm
C. 3 cm
D. 3.5 cm
If the radius of a circle is increased to 3 times, then how many times will it’s circumference be increased?
A. 2times
B. 3times
C. 1/3 times
D. 9times
The area of largest triangle that can be inscribed in a semicircle of radius R cm is__________?
A. 2R cm2
B. R2 cm2
C. 1/2 R2 cm2
D. 2 R2 cm2
The areas of two similar triangles are 12 cm2 and 48SQ. cm .If the height of the smaller one is 2.1cm than the corresponding height of the bigger one is_________?
A. 0.525cm
B. 4.2cm
C. 80%
D. 60%
A typist uses a paper 30cm x 15cm.He leaves a margin at 2.5cm at the top and the bottom and 12.5cm on either side. What percentage of paper area is approximately available for typing
A. 65%
B. 70%
C. 80%
D. 60%
The area of a square field is 6050 Sq.m.The length of it diagonal is_________?
A. 110m
B. 112m
C. 120cm
D. 135m