MEDIUM
8th CBSE
IMPORTANT
Earn 100

Area of an equilateral triangle=____________(side)2.

Important Questions on Mensuration-I (Plane Figures)

EASY
8th CBSE
IMPORTANT
START UP MATHEMATICS>Chapter 17 - Mensuration-I (Plane Figures)>REVIEW EXERCISES>Q 3
Each of the two parallel sides of a trapezium is called the _______ of the trapezium.
EASY
8th CBSE
IMPORTANT
START UP MATHEMATICS>Chapter 17 - Mensuration-I (Plane Figures)>REVIEW EXERCISES>Q 4
The area of a trapezium whose bases are 8 m and 5 m and altitude is 2 m is equal to _____m2.
EASY
8th CBSE
IMPORTANT
START UP MATHEMATICS>Chapter 17 - Mensuration-I (Plane Figures)>REVIEW EXERCISES>Q 1
Give Heron's formula to calculate the area of a triangle.
HARD
8th CBSE
IMPORTANT
START UP MATHEMATICS>Chapter 17 - Mensuration-I (Plane Figures)>REVIEW EXERCISES>Q 2
What is the formula for finding the side of a rhombus?
EASY
8th CBSE
IMPORTANT
START UP MATHEMATICS>Chapter 17 - Mensuration-I (Plane Figures)>REVIEW EXERCISES>Q 3
What will be the equivalent of 6.5 m2 in cm2?
EASY
8th CBSE
IMPORTANT
START UP MATHEMATICS>Chapter 17 - Mensuration-I (Plane Figures)>REVIEW EXERCISES>Q 4
How do you find the area of a regular or irregular polygon?
EASY
8th CBSE
IMPORTANT
START UP MATHEMATICS>Chapter 17 - Mensuration-I (Plane Figures)>REVIEW EXERCISES>Q 5
What will be the altitude of a triangle whose area is 72 m2 and base is 4 m?
MEDIUM
8th CBSE
IMPORTANT
START UP MATHEMATICS>Chapter 17 - Mensuration-I (Plane Figures)>REVIEW EXERCISES>Q 1
The base of a triangular field is 880 m and its height is 550 m. Find the ara of the field. Also calculate the charges for supplying water to the field at the rate of ₹ 25 per square metre.