The length of the three sides of a right triangle is 3, 4 and 5 cm respectively. The height of the hypotenuse of the triangle is () cm

The length of the three sides of a right triangle is 3, 4 and 5 cm respectively. The height of the hypotenuse of the triangle is () cm

∵3²＋4²=5²
The length of the three sides is 3 cm, 4 cm and 5 cm respectively, which is a right triangle
The height on the hypotenuse of the triangle is 3 × 4 △ 5 = 2.4cm

If the base of a triangle is ACM in length and HCM in height, its area is___ cm2．

The area of triangle is 12Ah

The longer the base of a triangle, the larger the area, right?

Area of triangle = 1 / 2 bottom x height
So if the height of the triangle is constant, the longer the base of the triangle, the larger the area of the triangle
If the height of the triangle is uncertain, it is not true