Maths-
General
Easy
Question
Sides of triangle are 100 m, 120 m and 140 m. Find its area
Hint:
Use Heron’s formula
The correct answer is: 2.44
It is given that a = 100 , b = 120 and c = 140
Using Heron’s formula
Area of triangle = 
where s = 
s = 
= 180
Area of triangle
= 
= 
= 100 
= 2400 cm2
= 5878.76 cm2 (
= 2.44)
Related Questions to study
Maths-
Find the equation of the given line . Application
Find the equation of the given line . Application
Maths-General
Maths-
Find the area of largest triangle that can be inscribed in a semi-circle of radius 9 cm.
Find the area of largest triangle that can be inscribed in a semi-circle of radius 9 cm.
Maths-General
Maths-
An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find the area of triangle.
An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find the area of triangle.
Maths-General
Maths-
A line passes through point (3, 1) and has slope = -2/3. Find its equation .Application
A line passes through point (3, 1) and has slope = -2/3. Find its equation .Application
Maths-General
Maths-
Find the area of a triangle, two sides of which are 18 cm and 10 cm and the perimeter is 42 cm.
Find the area of a triangle, two sides of which are 18 cm and 10 cm and the perimeter is 42 cm.
Maths-General
Maths-
An isosceles right angled triangle has area 8 cm2 . Find the length of its hypotenuse.
An isosceles right angled triangle has area 8 cm2 . Find the length of its hypotenuse.
Maths-General
Maths-
Write an equation of the line with the slope -1 and y-intercept 10.Application
Write an equation of the line with the slope -1 and y-intercept 10.Application
Maths-General
Maths-
If the length of the median of an equilateral triangle is x cm, then what is the area of triangle.
If the length of the median of an equilateral triangle is x cm, then what is the area of triangle.
Maths-General
Maths-
Write an equation of the line with zero slope and passing through (3,7).Application
Write an equation of the line with zero slope and passing through (3,7).Application
Maths-General
Maths-
The edges of a triangular board are 6 cm, 8 cm and 10 cm. Find the area of triangle.
The edges of a triangular board are 6 cm, 8 cm and 10 cm. Find the area of triangle.
Maths-General
Maths-
An electrical geyser in cylindrical shape, having a diameter of 3.5 cm and height of 1.2 m neglecting the thickness of its walls. Calculate its capacity in litres?
An electrical geyser in cylindrical shape, having a diameter of 3.5 cm and height of 1.2 m neglecting the thickness of its walls. Calculate its capacity in litres?
Maths-General
Maths-
Write an equation of the line with undefined slope and passing through (5,11).Application
Write an equation of the line with undefined slope and passing through (5,11).Application
Maths-General
Maths-
The difference between the sides of the right angles triangle containing the right angle is 7 cm, and its area is 60 cm2 . Find the perimeter of the triangle.
The difference between the sides of the right angles triangle containing the right angle is 7 cm, and its area is 60 cm2 . Find the perimeter of the triangle.
Maths-General
Maths-
An artist charges $20 constant fee plus $10 per extra hour he does. Write the linear model and find the charges taken by him if he works for 4 and a half hours.
An artist charges $20 constant fee plus $10 per extra hour he does. Write the linear model and find the charges taken by him if he works for 4 and a half hours.
Maths-General
Maths-
A square and equilateral triangle have equal perimeters. If the diagonal of the square is 12
cm, find the area of triangle.
A square and equilateral triangle have equal perimeters. If the diagonal of the square is 12 cm, find the area of triangle.
Maths-General
