Answer:
The amount of glass needed to make the lampshade is:
166.27 square inches
Step-by-step explanation:
The base of the lampshade is a regular hexagon with a side length of 8 inches.
Estimate the amount of glass needed to make the lampshade.
Area of hexagon of side s= (3√3 s²)/ 2
Here, s= 8 inches
Area=
=166.27 square inches
Hence, the amount of glass needed to make the lampshade is:
166.27 square inches
Correct answer is : Area of triangle is
Solution:-
We can do it in 2 methods.
Method 1:-
Given that AB=6, BC=10 and m∠B = 120
Then area of triangle =
Let us assume AB is base and D is an altitude from C onto AB.
Then sin(60)=
CD = BC sin(60)
Hence height = =
Hence area of ΔABC = sq.units
Method2:-
Area of triangle =
Here a= BC=10, c=AB=6.
Hence area of triangle = sq.units
