Similarity coefficient

The similarity ratio of two equilateral triangles is 4.3 (i.e., 43:10). The length of the side of the smaller triangle is 7.5 cm. Calculate the perimeter and area of ​​the larger triangle.

Correct answer:

o2 =  96.75 cm
S2 =  450.36 cm2

Step-by-step explanation:

a=7.5 cm o1=3 a=3 7.5=245=22.5 cm S1=43 a2=43 7.5224.357 cm2 r=43/10=1043=4.3  o2=r o1=4.3 22.5=96.75 cm
S2=r2 S1=4.32 24.357=450.36 cm2

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