Answer to Question #168282 in Physical geography for berket

Question

the base and height of a right angle triangle are 4 km and 7 cm respech vely the scale is 1 cm to 3 km what is the ground area of the triangle ?

Answer 1

Since the scale is 1 cm as 3 km, 7 cm is 21 km. The area of a right triangle is

$$A=\frac12 ah_a=\frac12·4· 21=42\text{ km}^2.$$