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tia_tia [17]
3 years ago
10

11. The polygons are similar, but not necessarily drawn to scale. Find the value of a and b.

Mathematics
1 answer:
givi [52]3 years ago
7 0
Corresponding sides have the same ratio.
(2a -5)/25 = 18/30
2a -5 = 25*18/30 = 15
a = (15 +5)/2 = 10

(3b +1)/15 = 30/18
3b +1 = 15*30/18 = 25
b = (25 -1)/3 = 8

a = 10
b = 8
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