You can use congruent triangles and cpctc to measure distances, such as the distance across a river, indirectly. true or false?

True

Step-by-step explanation:

Yes, We can use the congruent triangles and CPCTC to measure distances,such as the distance across a river indirectly.

For example: One of Napoleon’s officers used  the congruent triangles to estimate  the distance across the river. On the  riverbank, the officer stood up  straight and he  lowered the visor  of his cap until the extreme thing  he could see was the edge of the  opposite bank. He then turned  and noted the spot on his side  of the river that was in line with  his eye and the tip of his visor.

Using the two triangles, he made them congruent. Thus, it is true that congruent triangles and CPCTC can be use to measure the distances.

3; 9 is 8 to -4

step-by-step explanation: