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Unit 3 sas shove AN Mtn TIME LIMIT: 30 minutes | CALCULATOR: allowed da 24S SAVE THIS EXAMINATION. IT 18 YOUR BROOF THAT YOU TOOK IT AT THIS TIME. ere ee 1. What isthe (approximate) perimeter of right triangle ACB where a = 60.33, fos? = 7° and C = 90°? PXE A) 128.39 B) 128.43 C) 128.47 6) 128,52 E) 128.56 nh r \ 2. In right triangle ACB, a = 29.82, b = 99,32 and C = 90°, What is the +a” ” as (approximate) value of A - B? b> A) -57.7° 8) -57.4° sc) 87.1" =~) 36.6" ~—E) -86.3° onl Ve i” 3. What is the (approximate) Tength of side h of right triangle HIP where +anA ssa = j = 0.95, p = 0.86 and J = 90°? | ‘ k AS A) 0.228) 0.28 C) 0.34 ~~ 0.40 £) 0.46 46 4. To the nearest hundredth, what is the length of side a of (possibly oblique) triangle ABC, where B = 37°, C =:113° and b = 8.84? 2.84 IS. 4 : c 50?) sind? A) 7.47 7.34 C) 7.51) D) 7.68) 7.82 RS _ is. a4 tr0 5. In triangle ABC (which may be oblique), a = 211, c = 780 and A = 11°. Which one of the following might be angle C to the nearest tenth of a degree? A) 126.8° B) 129.3° c) 132.7° D) 135.1° & none of these Ds mw 790 gin _ sia i 79000 eH WA © 1989 Department of Mathematics Colorado State University 
