# MCQs for Mathematics Class 9 with Answers Chapter 12 Herons Formula

Students of Class 9 Mathematics should refer to MCQ Questions Class 9 Mathematics Herons Formula with answers provided here which is an important chapter in Class 9 Mathematics NCERT textbook. These MCQ for Class 9 Mathematics with Answers have been prepared based on the latest CBSE and NCERT syllabus and examination guidelines for Class 9 Mathematics. The following MCQs can help you to practice and get better marks in the upcoming Class 9 Mathematics examination

**Chapter 12 Herons Formula MCQ with Answers Class 9 Mathematics**

MCQ Questions Class 9 Mathematics Herons Formula provided below have been prepared by expert teachers of grade 9. These objective questions with solutions are expected to come in the upcoming Standard 9 examinations. Learn the below provided MCQ questions to get better marks in examinations.

**Question. An isosceles right triangle has area 8 cm ^{2}. The length of the hypotenuse is**

(a) 6 cm

(b) 32 cm

(c) 8 cm

(d) 4 cm

## Answer

B

**Question. The area of a triangle whose sides are 3 cm, 4 cm and 5 cm is**

(a) 42 cm^{2}

(b) 6 cm^{2}

(c) 84 cm^{2}

(d) 100 cm^{2}

## Answer

B

**Question. If the perimeter and base of an isosceles triangle are 11 cm and 5 cm respectively, then its area is**

(a) 511 cm^{2}

(b) 5211 cm^{2}

(c) 5811 cm^{2}

(d) 5411 cm^{2}

## Answer

D

**Question. If the perimeter of an equilateral triangle is 24 m, then its area is**

(a) 203 m^{2}

(b) 163 m^{2}

(c) 83 m^{2}

(d) 243 m^{2}

## Answer

B

**Question. The edges of a triangular board are 6 cm, 8 cm and 10 cm. The cost of painting it at the rate of 70 paise per c m^{2} is**

(a) Rs 7

(b) Rs 16.80

(c) Rs 17

(d) Rs 16

## Answer

B

**Question. If the difference between the semi-perimeter ‘s’ and the sides ‘a’, ‘b’ and ‘c’ of DABC are 8 cm, 7 cm and 6 cm respectively, then ar(DABC) is**

(a) 63 cm^{2}

(b) 42 cm^{2}

(c) 84 cm^{2}

(d) 168 cm^{2}

## Answer

C

**Question. The perimeter of a rhombus is 20 cm. If one of its diagonals is 6 cm, then its area is**

(a) 28 cm^{2}

(b) 36 cm^{2}

(c) 24 cm^{2}

(d) 20 cm^{2}

## Answer

C

**Question. If the perimeter of a rhombus whose diagonals measure 12 cm and 16 cm is equal to the perimeter of an isosceles triangle having its equal side and the base in the ratio 3 : 2, then the area of the isosceles triangle is**

(a) 502 cm^{2}

(b) 252 cm^{2}

(c) 752 cm^{2}

(d) 1002 cm^{2}

## Answer

A

**Question. The area of an isosceles triangle having base 24 cm and length of one of the equal sides 20 cm is**

(a) 480 cm^{2}

(b) 196 cm^{2}

(c) 240 cm^{2}

(d) 192 cm^{2}

## Answer

D

**Question. The perimeter of an isosceles triangle is 32 cm. The ratio of the equal side to its base is 3 : 2. Then area of the triangle is**

(a) 322 cm^{2}

(b) 32 cm^{2}

(c) 162 cm^{2}

(d) 16 cm^{2}

## Answer

A

**Question. The area of a triangle with base 8 cm and height 10 cm is**

(a) 80 cm^{2}

(b) 40 cm^{2}

(c) 20 cm^{2}

(d) 18 cm^{2}

## Answer

B

**Question. The sides of a triangle are 13 cm, 14 cm and 15 cm. The length of the shortest altitude is**

(a) 12 cm

(b) 11.2 cm

(c) 12.9 cm

(d) 11.9 cm

## Answer

B

**Question. The sides of a triangle are 12 cm, 16 cm and 20 cm. Its area is**

(a) 48 cm^{2}

(b) 120 cm^{2}

(c) 96 cm^{2}

(d) 160 cm^{2}

## Answer

C

**Question. The sides of a triangle are 17 cm, 25 cm and 26 cm. The length of the altitude to the longest side correct up to two places of decimals is**

(a) 16.32 cm

(b) 34.00 cm

(c) 15.69 cm

(d) 24.00 cm

## Answer

C

**Question. If the area of an equilateral triangle is 163 cm2, then the perimeter of the triangle is**

(a) 12 cm

(b) 24 cm

(c) 48 cm

(d) 36 cm

## Answer

B

We hope the above multiple choice questions for Class 9 Mathematics for Chapter 12 Herons Formula provided above with answers based on the latest syllabus and examination guidelines issued by CBSE, NCERT and KVS are really useful for you. Herons Formula is an important chapter in Class 9 as it provides very strong understanding about this topic. Students should go through the answers provided for the MCQs after they have themselves solved the questions. All MCQs have been provided with four options for the students to solve. These questions are really useful for benefit of Class 9 students. Please go through these and let us know if you have any feedback in the comments section.