Скачать или смотреть NCERT MATHS Class 9 Chapter 10 Heron's Formula Exercise 10.1, Q-3 and 4

Here are simple, clear descriptions for Question 3 and Question 4 from NCERT Class 9 Maths, Chapter 10 – Heron’s Formula, along with hashtags.



🔹 Question 3: Description

In this question, a side wall of a park slide is painted with a message “KEEP THE PARK GREEN AND CLEAN.”
The painted wall forms a triangle with sides 15 m, 11 m, and 6 m.
To find the area painted, we use Heron’s Formula because all three sides of the triangle are given.
First, we calculate the semi-perimeter, then apply Heron’s formula to find the area of the triangular wall.


Hashtags:
#HeronsFormula #NCERTClass9 #MathsChapter10 #TriangleArea #Mensuration #Class9Maths #ParkAwareness #GreenAndClean



🔹 Question 4: Description

This question is about finding the area of a triangle when two sides are given (18 cm and 10 cm) and the perimeter is 42 cm.
First, the third side is calculated using the perimeter.
Then, the semi-perimeter is found and Heron’s Formula is applied to calculate the area of the triangle.
This question helps students understand how to handle problems when all sides are not directly given.


Hashtags:
#HeronsFormula #NCERTMaths #Class9Chapter10 #TriangleProblems #MathsLearning #Mensuration #ExamPreparation #CBSEMaths