2.
One of the internal angles of the rhombus is 120° and the shorter diagonal is 3.4 meters long. Find the perimeter of the rhombus.
3.
Consider the isosceles trapezoid PQRS. The bases are |PQ| = 120 mm, |RS| = 62 mm and the arm s = 48 mm. Find the height of the trapezoid, diagonal length and the area of the trapezoid
4.
The perimeter of a football field is 102 cm. Find the length of the field if its breadth is 24 cm.
5.
What is the area of a triangle that has a height of 9cm and a base of 4 cm?
6.
A rectangular garden has a length of 57 m and a width of 42 m. Calculate of how many m2 will decrease the area of a garden, if the ornamental fence with a width of 60 cm will be planted inside its perimeter.
8.
A trapezoid ABCD has the bases length of a = 120 mm, c = 86 mm and the area A = 2,575 mm2. Find the height of the trapezoid.
9.
Calculate the length of the side of a square whose area is 1089 cm².
10.
A square has a perimeter of 24 cm. Find its area in cm².
12.
The area of a trapezium ABCD is 156 cm². If the parallel sides are 17 cm and 35 cm respectively, what is the height of the trapezium?
13.
The length of a diagonal of a 3 cm wide rectangle is 5 cm. Find the area of the rectangle.
14.
A land of a right-angled trapezoid shape has the bases lengths of 92 m and 76 m and the vertical arm is 6.3 m long. Find the land area and the length of a fencing needed to fence the land.
15.
The length of a board is twice its width. If its perimeter is 3.60 m, what is its width in cm?
16.
Calculate the area of a circle whose diameter is 7 cm.
17.
Find the length of the diagonal of a rectangle whose length and breadth are 8 cm and 6 cm respectively.
18.
A square field has a perimeter of 48 m. Find the area of the field.
19.
Calculate the perimeter of a semi-circle whose diameter is 14 cm.
20.
The perimeter of a rectangle is 20 cm. If the breadth is 4 cm, find its area.
