The rate of planting the grass is ₹x per square metre. Find the cost of planting the grass on a triangular lawn whose base is y metres and height is z metres
Solution:
Given, the rate of planting grass is ₹x per square metre.
We have to find the cost of planting the grass on a triangular lawn with base y metres and height z metres.
Area of triangle = 1/2 × base × height
Base = y
Height = z
Area of triangular part = 1/2 × y × z
= yz/2 square metres
Cost of planting grass in 1 square metre = ₹x
Cost of planting grass in yz/2 square metres = x × yz/2
= ₹xyz/2
Therefore, the cost of planting grass is ₹xyz/2
✦ Try This: The rate of planting the grass is ₹x per square metre. Find the cost of planting the grass on a triangular lawn whose base is 2m metres and height is 3z metres
☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 12
NCERT Exemplar Class 7 Maths Chapter 10 Problem 80
The rate of planting the grass is ₹x per square metre. Find the cost of planting the grass on a triangular lawn whose base is y metres and height is z metres
Summary:
The rate of planting the grass is ₹x per square metre. The cost of planting the grass on a triangular lawn whose base is y metres and height is z metres is ₹xyz/2
☛ Related Questions:
visual curriculum