... area of ABD 18 30. In triangle ABC, AB ϭ BC, and the < /b> measure of angle B ϭ the < /b> measure of angle C. the < /b> measure of angle B ϩ the < /b> measure of angle B ϩ the < /b> measure of angle C the < /b> measure of angle A 31. ... square is 6.< /b> Therefore, AB ϭ 6,< /b> and thus, the < /b> perimeter ϭ 24. 29. c. Area = ᎏ12ᎏ (6)< /b> (6)< /b> = 18 30. c. AB ϭ BC (given)Since the < /b> measure of angle B equals the < /b> measure of angle C, AB ϭ AC. Therefore, ... nearest degree) are in the < /b> angle of the < /b> sector representing mortgages? a. 59 b. 1 06< /b> c. 211 d. 2 46< /b> e. 3 18 50. The < /b> average annual interest on mortgage investments is m percent and the < /b> average annual...