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From the diagram, AE = AD + DE AE = 10 + 6 = 16 cm ∠ABC = ∠CED In ∆ADB and ∆AEC, (AB)/(AE ) = (AD)/(AC) (due to Similar triangle) (AB)/(16) = (10)/(8) AB = 20 cm
Four terms are in proportion. The first, second and fourth terms are 4, 22, and 33. Find the third term.
3 2 2 3 8 ?
...31 33 69 212 ? 4286
...1 2 6 ...
13, 14, 18, 27, 43, ?
104 136 152 160 164 ?
...4 7 24 91 462 2763
18 ...
123 125 129 132 ? 145
42 43 46 ...
2342 2223 2090 1943 1782 ?
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