8:13 Sun, Nov 27 AABC ADEC. 21 and 22 have the same measure. Find DC and DE. (Hint: Let DC = x and AC=x+3. Use the figure shown to the right.) DC is unit(s) long. (Round to the nearest tenth as needed.) DE is unit(s) long. (Round to the nearest tenth as needed.) X D 3 10 8 (2 10 E SG 49% 6 B

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter8: Applications Of Trigonometry
Section8.2: The Law Of Cosines
Problem 48E
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8:13 Sun, Nov 27
AABC~ ADEC. 21 and 22 have the same measure. Find DC and DE. (Hint: Let DC = x and
AC=x+3. Use the figure shown to the right.)
DC is
unit(s) long.
(Round to the nearest tenth as needed.)
DE is unit(s) long.
(Round to the nearest tenth as needed.)
O
C...
D
3
10
A
/2
10
E
SG 449%
6
B
Transcribed Image Text:8:13 Sun, Nov 27 AABC~ ADEC. 21 and 22 have the same measure. Find DC and DE. (Hint: Let DC = x and AC=x+3. Use the figure shown to the right.) DC is unit(s) long. (Round to the nearest tenth as needed.) DE is unit(s) long. (Round to the nearest tenth as needed.) O C... D 3 10 A /2 10 E SG 449% 6 B
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