Two triangles have equal areas. The first has base 16 cm and height 9 cm. The second triangle has height 12 cm. What must be the base of the second triangle?
Class 7Area of TrianglesPerimeter and Area
A13
B11
C12
D24
Step-by-Step Solution
Area of first = 21x16×9=72 sq cm. For the second: 72=21xbx12=6b, so b=12 cm.
Answer: C) 12
Master this chapter in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.