A. 25 cm2
B. 42 cm2
C. 49 cm2
D. None of these
Area of a triangle = r * s
Where r is the inradius and s is the semi perimeter of the triangle.
Area of triangle = 2.5 * 28/2 = 35 cm2
Related Mcqs:
- The perimeter of one square is 48 cm and that of another is 20 cm. Find the perimeter and the diagonal of a square which is equal in area to these two combined?
A. 15√2 cm
B. 13√2 cm
C. 16√2 cm
D. 17√2 cm - If an area enclosed by a circle or a square or an equal triangle is the same then the maximum perimeter is possessed by_________?
A. Circle
B. Square
C. Equilateral Triangle
D. Both Triangle and Square - The sides of a triangle are in the ratio ½: 1/3: ¼. If the perimeter is 52cm then the length of the smallest side is________?
A. 9cm
B. 10cm
C. 11cm
D. 12cm - The perimeter of a triangle is 81 cm. If the sides are in the ratio 4:3:2, find the length of the largest side.
A. 45 cm
B. 40 cm
C. 36 cm
D. 27 cm - Area of a square with side x is equal to the area of a triangle with base x. The altitude of the triangle is:________?
A. x/2
B. x
C. 2x
D. 4x - The area of the square formed on the diagonal of a rectangle as its side is 108 1/3 % more than the area of the rectangle. If the perimeter of the rectangle is 28 units, find the difference between the sides of the rectangle?
A. 8
B. 12
C. 6
D. 2 - The sector of a circle has radius of 21 cm and central angle 135o. Find its perimeter?
A. 91.5 cm
B. 93.5 cm
C. 94.5 cm
D. 92.5 cm - The area of a square is equal to five times the area of a rectangle of dimensions 125 cm * 64 cm. What is the perimeter of the square?
A. 600 cm
B. 800 cm
C. 400 cm
D. 1000 cm - The parameter of a square is double the perimeter of a rectangle. The area of the rectangle is 480 sq cm. Find the area of the square.
A. 200 sq cm
B. 72 sq cm
C. 162 sq cm
D. Cannot be determined - The parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 14 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square. (Round off your answer to two decimal places)?
A. 23.57 cm
B. 47.14 cm
C. 84.92 cm
D. 94.94 cm
