3 years ago

(sorry this is a repost, mods please delete the first one, thanks!)

Mathematics

1 answer:

erma4kov [3.2K]3 years ago

5 0

Answer:

AR = 24

RB = 25

Step-by-step explanation:

I assume ABCR is a rectangle.

If so, the opposite sides are equal:

AR = BC

3x + 6 = x + 18

2x = 12

x = 6

Therefore, AR = 3x + 6 = 24.

RB is found with Pythagorean theorem:

RB² = RC² + BC²

RB² = 7² + 24²

RB = 25

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