Geometry Interview Questions and Answers
1 . A polygon has 77 diagonals. Determine the number of sides ?
A. 15
B. 12
C. 17
D. 14
Answer : D. 14
2 . A rectangular grassy plot is 112 m by 78 m. It has a gravel path 2.5 m m wide all around it on the inside.Find the area of the path ?
A. 952 m²
B. 925 m²
C. 912 m²
D. 950 m²
Answer : B. 925 m²
3 . A square field of area 31684 m2 is to be enclosed with the wireplaced at height 1 m, 2 m, 3 m, 4 m above the ground. What length of the wire will be required if its length required for each circuit is 5% greater than the perimeter of the field ?
A. 6456 m
B. 27666 m
C. 2990.4 m
D. 14
Answer : C. 2990.4 m
4 . An oblong piece of ground measures 19m 2.5dm by 12m 5dm.From center of each side of the ground, a path 2m wide goesacross to the center of the opposite side.What is the area of the path ?
A. 59.5 m2
B. 54 m2
C. 78.54 m2
D. 34 m2
Answer : C. 78.54 m2
5 . Determine the metal required to make a 21 m long pipe if its inner and outer diameter is 12 m and 10 m respectively ?
A. 725 m3
B. 2534 m3
C. 2843 m3
D. 2647 m3
Answer : A. 725 m3
6 . Find the area of Rhombus one of whose diagonals measures 8 cm and the other 10 cm ?
A. 47 cm2
B. 34cm2
C. 40 cm2
D. 64cm2
Answer : C. 40 cm2
7 . If the perimeter and the diagonal of a rectangle is 18 cm and √41 cm respectively. Calculate the area of the rectangular field ?
A. 25 cm2
B. 29 cm2
C. 18 cm2
D. 20 cm2
Answer : D. 20 cm2
8 . In triangle PQR, PQ = 6 cm, PR = 8 cm, and QR = 12 cm. Calculate the area of the triangle PQR ?
A. 23.33 cm2
B. 17.5 cm2
C. 21.33 cm2
D. 28.67 cm2
Answer : C. 21.33 cm2
9 . What is the radius of the circular plate of thickness 1 cm made by melting a sphere of radius 3 cm ?
A. 6 cm
B. 5 cm
C. 4 cm
D. 7 cm
Answer : A. 6 cm
10 . Which of the following graph indicates the graph of { (sin t, cos t):- π/2 ≤ t ≤ 0 } in xy-plane ?
A. d
B. c
C. b
D. a