The bottom of a triangle remains unchanged. After multiplying the height by 2, the area is 120 ordinary decimeters. What is the area of the original triangle

The bottom of a triangle remains unchanged. After multiplying the height by 2, the area is 120 ordinary decimeters. What is the area of the original triangle

120÷2=60
The original area of the triangle is 60 decimeters;

The height of a parallelogram is 1. The bottom is one third less than the height. How many square meters is the area of the parallelogram

High is two-thirds
The bottom is two-thirds * three-thirds = 1
S=ah
=1.5*1
=1.5 square decimeter
=0.015 M2
Ensure accuracy

The height of a parallelogram is 15 decimeters, and the bottom is one third less than the height. The area of this parallelogram is () square decimeters

[reference answer]
Height: 15 × [1 - (1 / 3)] = 10 decimeters
Area: 10 × 15 = 150 square decimeters
A: the area is 150 square decimeters
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