10 cm
16/2=8 cm 12/2=6 cm 8^2+6^2=100 sqrt(100)=10 cm
Trapezoid as shown has two parallel sides with length 5 and 15 & two diagonals with length 12 and 16. What is its area?
The lengths of two adjacent sides of a parallelogram are 8 and 15, respectively. Find the sum of squares of the lengths of the two diagonals.
If the area of a square and rectangle are equal. The side of square is 12 cm and length of the rectangle is 16 cm, then what would be the perimeter of rectangle?