Vertices of quadrilateral ABCD are on circumference of a circle. If AB is diameter of circle and ADC = 130°, then BAC is
500
400
300
200
OA, OB and OC are edges of a cube meeting at vertex O. If length of each is a cm, then area of ABC will be
a2 cm2
Two cylinders have equal volumes and their heights are in the ratio 1: 3. The ratio of their radii will be
1 : 3
3 : 1
Area of two similar triangles are 4 cm2 and 9 cm2 respectively. The ratio of their corresponding sides is
4 : 9
9 : 4
3 : 2
2 : 3
Salman solve - 3 - 4 = 7. The error is committed as
Salman needs to practice solving problems of similar type
Salman has not understood the concept of multiplication of integers
Salman is careless
Salman is not clear about the concept of addition of integer
D.
Salman is not clear about the concept of addition of integer
Salman is not clear about the concept of addition of integers.