Area of right triangle = 1/2 x P x B or Half of product of two sides which are at right angle to each other(if we don't know which one is perpendicular or base).
One of the sides measures 72 cm and the other can be calculated by applying Pythagoras theorem.
Let the other side be x
And x2 = 782 - 722 = 900 (By Pythagoras theorem)
x = (900)1/2 = 30 cm
So the other side measures 30 cm.
Thus, Area of the triangle = 1/2 x 72 x 30 = 1080 cm2.
Chat with our AI personalities
It is not possible to have a triangle with sides of those lengths. The two shortest sides of a triangle must always add to more than the longest side. This is known as the triangle inequality.
1m 78cm = 5' 10.1"
1cm = 10mm so 780mm = 780/10 = 78cm
48cm x 78cm is 3744 square cm or 4.03 square feet.
The rectangle is 23cm x 16cmHalf the perimeter is 78 / 2= 39cm (which is one side and one end).39 - 7 = 32cm32 / 2 = 16cm (one end)16 + 7 = 23cm (one side)Proof:(23 + 16) x 2 = 78cm the perimeter.