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What's In
We will have a review of what you have learned about area of a circle.
Find the area of the circle given its diameter/radius. (circles are not drawn to scale)
1.
5mm
2. 21cm
3.
12m
4.
5.
17cm
52in
Area:
Area:
Area:
Area:
Area:

Whats In We will have a review of what you have learned about area of a circle Find the area of the circle given its diameterradius circles are not drawn to sca class=

Respuesta :

Answer:

1) A = π(5²) = 25π mm²

2) A = π(21/2)² = (441/4)π cm²

3) A = π(12²) = 144π m²

4) A = π(17²) = 289π cm²

5) A = π(26²) = 676π in.²

Answer:

1. the formula for area of a circle is πr^2 = 22/7 or 3.14

r= 5mm

Area= 22\7×5/1= 110\7= 15.71mm

2. 22/7×21/1=66 cm

3.22/7×12/1=37.71 m

4. 22/7×17/1=453.43 cm

5. 22/7×52/1=163.43 in

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