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Practice Test · Class 9

Heron's Formula

10 questions randomised from the chapter. Type each final answer and submit to see your score.

00:01
0/10 attempted
01
Sides 8,15,178, 15, 17: area.
02
Sides 7,24,257, 24, 25: area.
03
Verify Heron's formula for 6,8,106, 8, 10.
04
Isosceles 10,10,1210, 10, 12: area.
05
Equilateral side 66: area.
06
Area of a triangular park with sides 50,65,6550, 65, 65 m.
07
Sides 9,12,159, 12, 15: area.
08
Semi-perimeter of 6,8,106, 8, 10.
09
Area of equilateral triangle side 1010.
10
Sides 13,14,1513, 14, 15: area.
Gyaan Maths — CBSE Class 6-10, built for board-toppers.
v1.1 · Feb 2026