The side BC of a triangular lot
ABC is 400 m. Angle ABC is 50. A 150 m line
DE, parallel to BC, divides the lot making
area BCED to be 50 977.80 m2.
1. Determine the measure of angle A.
a. 63
c. 69
b. 67
d. 71
2. Determine area of triangle ABC.
a. 59 319.37 m2
b. 51 399.67 m2
c. 53 991.67 m2
d. 59 913.67 m2
3. Determine the length of the line AE.
a. 124.83 m
c. 148.23 m
b. 142.38 m
d. 134.28 m