Similar Triangles Question Solving Video - 23rd February 2015

Question 1. ABCD is a trapezium.whose side AD is parallel to BC. Diagonals AC and BD intersect at O. If AO = 3, CO = x-3, BO = 3x-19 and DO = x-5 . The value of x will be

1. 7,6
2. 12,6
3. 7,10
4. 8,9

Question 2. The ratio of sides of a triangle is 3:4:5. If the area of the triangle is 72 square units, then the length of the smallest side is

1. 4 root 3
2. 5 root 3
3. 6 root 3
4. 3 root 3

Question 3. A unique circle can always be drawn through x number of given non-collinear points, then x must be

1. 2
2. 3
3. 4
4. 1

Question 4. If triangle ABC is similar to triangle DEF, such that angle A = 47 degree and angle E = 63 degree then angle C is equal to

1. 40 degree
2. 70 degree
3. 65 degree
4. 37 degree