using herons formula help me with this
Attachments:
Answers
Answered by
1
Answer:
√21(21-15)(21-14)(21-13)
=√21X6X7X8
=√7X3X2X3X7X2X2X2
=√7²X3²X2⁴
=7X3X4
=21X4 cm²
=84 cm²
Similar questions
Hindi,
2 months ago
Business Studies,
2 months ago
Math,
2 months ago
India Languages,
5 months ago
Economy,
11 months ago
Biology,
11 months ago