Pls confirm the following :-
1) Circumference of semicircle = r
2) Circumference of Quadrant
= ( r ) / 2
3) Perimeter of Circle = Circumference of circle = 2 r
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Answer:
1 : circumference of of semicircle= 2πr
2 : circumference of quadrant = πr/2
3: Perimeter of circle = circumference of circle =2πr
Step-by-step explanation:
hope it helps...
abhipsit733:
thanks
can u pls confirm too whether the perimeter of concentric rings = cirrcumference of concentric rings = 2×pi×R ( R is the radius of bigger circle )
yup you are right ... circumference of concentric circles is 2πR (where R is bigger circle's radius )
tysm
❤️
And also one more thing...
Pls confirm these also
1) TSA of cuboid = SA of cuboid = 2(lb+bh+lh)
2) TSA of cube = SA of cube = 6a²
3) Area of 4 walls of cuboid = LSA of cuboid = 2h(l+b)
4) Area of 4 walls of cube = LSA of cube = 4a²
Pls confirm these also
1) TSA of cuboid = SA of cuboid = 2(lb+bh+lh)
2) TSA of cube = SA of cube = 6a²
3) Area of 4 walls of cuboid = LSA of cuboid = 2h(l+b)
4) Area of 4 walls of cube = LSA of cube = 4a²
where LSA → Lateral Surface area, TSA → Total surface area and SA → Surface area
pls
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