# MCQ Questions | Class 9 Maths Chapter 12 | Heron’s Formula with Answers ## MCQ | Heron’s Formula Class 9

Check the below NCERT MCQ Questions for Class 9 Maths Chapter 12 Heron’s Formula with Answers Pdf free download. MCQ Questions for Class 9 Maths with Answers were prepared based on the latest exam pattern. We have Provided Heron’s Formula Class 9 Maths MCQs Questions with Answers to help students understand the concept very well.

### Objective Question | NCERT Maths Class 9

Book: National Council of Educational Research and Training (NCERT) Central Board of Secondary Education (CBSE) 9th Maths 12 Heron’s Formula English

#### Ncert Solutions for Class 9 Maths | Objective Type Questions

You can refer to NCERT Solutions for Class 9 Maths Chapter 12 Heron’s Formula to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.
##### Heron’s Formula | Class 9 Maths | NCERT Solutions
 Q1. ncert maths class 9 textbookFind the length of each side of an equilateral triangle having area of 9 root 3 cm square A. 36 cm B. 5 cm C. 15 cm D. 6 cm
Ans: 6 cm
 Q2. ncert maths class 9 textbook pdf downloadLength of perpendicular drawn on longest side of a scale ? is A. Smallest B. Largest C. No relation D. None
Ans: Smallest
 Q3. cbse maths class 9 bookThe equal sides of isosceles triangle are 12 cm and perimeter is 30 cm. The area of this triangle is: A. 9v15 sq.cm B. 6v15 sq.cm C. 3v15 sq.cm D. v15 sq.cm.
Ans: 9v15 sq.cm
 Q4. cbse maths class 9 chapter 12The sides of a triangle are 35 cm, 54 cm and 61 cm. The length of its longest altitude is A. 16v5 cm B. 10v5 cm C. 24v5 cm D. 28 cm
Ans: 24v5 cm
 Q5. cbse maths class 9 exerciseThe sides of a triangle are in the ratio 12 : 17 : 25 and its perimeter is 540cm. The area is: A. 1000 sq.cm. B. 5000 sq.cm. C. 9000 sq.cm. D. 8000 sq.cm.
Ans: 9000 sq.cm.
 Q6. cbse maths class 9 sample paperThe lengths of a triangle are 6 cm, 8 cm and 10 cm. Then the length of perpendicular from the opposite vertex to the side whose length is 8cm is: A. 4 cm B. 6 cm C. 5 cm D. 2 cm
Ans: 6 cm
 Q7. cbse maths class 9 solutionsAn isosceles right triangle has area 8 cm². The length of its hypotenuse is A. $$\sqrt{32}$$ cm B. $$\sqrt{16}$$ cm C. $$\sqrt{48}$$ cm D. $$\sqrt{24}$$ cm
Ans: $$\sqrt{32}$$ cm

 Q8. cbse maths class 9 syllabusThe perimeter of an equilateral triangle is 60 m. The area is A. 10v3 m² B. 15v3 m² C. 20v3 m² D. 100v3 m²
Ans: 100v3 m²

 Q9. cbse maths class 9 textbook pdfThe sides of a triangle are 56 cm, 60 cm and 52 cm long. Then the area of the triangle is A. 1322 cm² B. 1311 cm² C. 1344 cm² D. 1392 cm²
Ans: 1344 cm²

 Q10. class 9 cbse maths bookThe area of an equilateral triangle with side 2v3 cm is A. 5.196 cm² B. 0.866 cm² C. 3.496 cm² D. 1.732 cm²
Ans: 5.196 cm²

 Q11. class 9 cbse maths chapter 12 solutionsThe length of each side of an equilateral triangle having an area of 9v3 cm² is A. 8 cm B. 36 cm C. 4 cm D. 6 cm
Ans: 6 cm

 Q12. class 9 cbse maths chapter 12The area of an equilateral triangle having side length equal to v3/4cm is: A. 2/27 sq.cm B. 2/15 sq.cm C. 3/16 sq.cm D. 3/14 sq.cm
Ans: 3/16 sq.cm
 Q13. class 9 cbse maths paperLength of perpendicular drawn on smallest side of scalene triangle is A. Smallest B. Largest C. No relation D. None
Ans: No relation
 Q14. class 9 cbse maths sample paperThe sides of a triangle are 122 m, 22 m and 120 m respectively. The area of the triangle is: A. 1320 sq.m B. 1300 sq.m C. 1400 sq.m D. 1420 sq.m
Ans: 1320 sq.m
 Q15. class 9 cbse maths solutions The sides of a parallelogram are 100 m each and length of the longest diagonal is 160m. The area of parallelogram is: A. 9600 sq.m B. 9000 sq.m C. 9200 sq.m D. 8800 sq.m
Ans: 9600 sq.m
 Q16. class 9 cbse maths syllabus The sides of a triangle are in the ratio of 3 : 5 : 7 and its perimeter is 300 cm. Its area will be: A. 1000v3 sq.cm B. 1500v3 sq.cm C. 1700v3 sq.cm D. 1900v3 sq.cm
Ans: 1500v3 sq.cm
 Q17. class 9 maths syllabusIf the area of an equilateral triangle is 16v3 cm², then the perimeter of the triangle is A. 48 cm B. 24 cm C. 12 cm D. 36 cm
Ans: 24 cm

 Q18. class 9 maths book pdfThe sides of a triangle are 35 cm, 54 cm and 61 cm. The length of its longest altitude is A. 16v5 cm B. 10v5 cm C. 24v5 cm D. 28 cm
Ans: 24v5 cm

 Q19. class 9 maths chapter 12The area of an isosceles triangle having base 2 cm and the length of one of the equal sides 4 cm is A. $$\sqrt{15}$$ cm² B. $$\sqrt{\frac{15}{2}}$$ cm² C. 2$$\sqrt{15}$$5 cm² D. 4$$\sqrt{15}$$ cm²
Ans: $$\sqrt{15}$$ cm²

 Q20. class 9 maths chapter 12 exerciseThe edges of a triangular board are 6 cm, 8 cm and 10 cm. The cost of painting it at the rate of 9 paise per cm² is A. Rs 2.00 B. Rs 2.16 C. Rs 2.48 D. Rs 3.00
Ans: Rs 2.16