Question

Подобны ли треугольники АВС и А1В1С1, если АВ = 21 см, ВС = 18 см, СА = 24 см, А1В1 = 28 см, В1С1 = 24 ,С1А1 = 32 см?

Answer 1

Ответ:

подобны

AB : A1B1 =21 : 28= 3:4

BC : B1C1 = 18:24 = 3:4

CA : C1A1 = 24:32 = 3:4

Answer 2

Are triangles ABC and A1B1C1 similar?

To determine if triangles ABC and A1B1C1 are similar, we need to compare their corresponding sides. If the ratios of the corresponding sides are equal, then the triangles are similar.

Given the following side lengths: - AB = 21 cm - BC = 18 cm - CA = 24 cm - A1B1 = 28 cm - B1C1 = 24 cm - C1A1 = 32 cm

Let's compare the ratios of the corresponding sides:

Ratio of AB to A1B1: AB/A1B1 = 21/28 = 0.75

Ratio of BC to B1C1: BC/B1C1 = 18/24 = 0.75

Ratio of CA to C1A1: CA/C1A1 = 24/32 = 0.75

The ratios of the corresponding sides are all equal to 0.75. Therefore, we can conclude that triangles ABC and A1B1C1 are similar.

Note: The search results did not provide specific information about the similarity of triangles ABC and A1B1C1. However, the similarity of triangles can be determined by comparing the ratios of their corresponding sides, as explained above.