ZniyahE786946 ZniyahE786946

25-10-2022
Mathematics

contestada

ten B В 15 cm А 20 cm С C

Respuesta :

LeelyndW470466 LeelyndW470466

25-10-2022

Tangent segment, of a circle

Apply formulas

20^2 - 15^ 2 = AB^2

Also

15^2 = 20•( 20 - AB)

225 = 400 - 20AB

Then

20AB = 400-225= 175

AB = √ 175= 13 + 6/25 =13.24

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