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

NCERT Solutions Class 9 Maths
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	9th
Subject:	Maths
Chapter:	12
Chapters Name:	Heron’s Formula
Medium:	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 textbook Find 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 download Length 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 book The 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 12 The 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 exercise The 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 paper The 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 solutions An 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 syllabus The 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 pdf The 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 book The 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 solutions The 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 12 The 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 paper Length 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 paper The 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 syllabus If 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 pdf The 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 12 The 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 exercise The 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