A triangle and a parallelogram have the same base and the same area. If the sides of the triangle are 26 cm, 28 cm and 30 cm, and the parallelogram stands on the base 28 cm, find the height of the parallelogram.
The measurements of the sides of a triangle are 20 cm, 30 cm and 40 cm. Find the area of this triangle.
The sides of a triangle measure 12 cm, 17 cm and 25 cm. Then, the area of the triangle is ……………. cm^(2) .
If a triangle and a parallelogram are on the same base and between the same parallels, then prove that the area of the triangle is equal to half the area of the parallelogram.
Find the area of a triangle two sides of which are 18 cm and 10 cm and the perimeter is 42 cm.
The sides of a triangle m easure 8 cm, 12 cm and 6 cm. Then, the sem iperim eter of the triangle is ..........cm.
In a parallelogram, two adjacent sides measure 51 cm and 35 cm. One of its diagonals measures 20 cm. Find the area of the parallelogram.
If the points A(1,-2) , B(2,3), C(a,2) and D(-4, -3) form a parallelogram, find the value of a and height of the parallelogram taking AB as base.
In a parallelogram, two adjacent sides measure 9 cm and 10 cm. One of its diagonals measures 17 cm. Find the area of the parallelogram.
Using vectors, prove that the parallelogram on the same base and between the same parallels are equal in area.
A right triangle ABC with sides 5 cm, 12 cm and 13 cm is revolved about the side 12 cm. Find the volume of the solid so obtained.
