Some geometry problems for Engineering Board Exam.
00:00 1.1. If the area of an equilateral triangle is 9 sq. rt. of 3 sq. cm., then its perimeter is
a. 9 sq.rt. of 3 cm. b. 18 cm. c. 18 sq. rt. of 2 cm d. 12 cm
02:27 2. A circle with a radius 6 has half its area removed by cutting off a border of uniform width. Find the width of the border.
a. 1.76 b. 2.2 c. 1.35 d. 3.75
08:36 3. A rectangle ABCD which measures 18 by 24 units is folded once, perpendicular to diagonal AC, so that the opposite vertices A and C coincide. Find the length of the fold.
a. 45/2 b. 2 c. 7/2 d. 54/2
