what is the third angle of the triangle is first angle = 45 and second angle is 45
if a triangle has 90 degree what it is called?
The perimeter of an isosceles triangle is 100 cm. If the base is 36 cm, find the length of the equal sides.
In an isosceles right-angled triangle, the perimeter is 20 meters. Find its area.
The length of the base of a triangle is 4 cm smaller than the length of its altitude. The area of the triangle is 96 cm2. The length of the base is