Step-by-step explanation:
1/2 × height × base
1/2 × 6.3 × 8
6.3 × 4 = 25.2 ans.
therefore, area of the ∆ is 25.2 ft ².
Answer:
Step-by-step explanation:
reqd.area=area of square ABCD + area of trapezoid(or trapezium)CEFG
BE=BC+CE=16+16
CD=CG+GD=8+8
A=16×16+1/2 (16+8)×16
=256+192
=448 sq. inches.
or
reqd. area=32×16-1/2(8×16)
=512-64
=448 sq. inches.
Answer:
The volume of the hemisphere
V = 121.33086 cubic centimeter
Step-by-step explanation:
<u>Step(i)</u>:-
Given that the total surface area of a hemisphere = 45π cm²
<em> The total surface area of a hemisphere = 3π r²</em>
Equating
3π r² = 45π

r = 
The radius of the sphere 'r' = 3.87
<u><em>Step(ii):-</em></u>
<em>The volume of the hemisphere</em>


we know that π = 3.14

V = 121.33086 cubic centimeter
This would come as close as I know to solving this .