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kolezko [41]
3 years ago
6

2Find the perimeter and area of this shape.1 cmNOT TOSCALE6 cm1 cm9 cm​

Mathematics
1 answer:
kherson [118]3 years ago
4 0

Step-by-step explanation:

circumference=πd

22/7×4

12.57

perimeter=12.57+9+9+2+6

= 38.57

area=6×9=54

1/2πr2

1/2×22/7×4×4

=25.14

54-25.14

area=28.86cm2

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Step-by-step explanation: (a) If you have to mix 25% mineral spirit to the varnish as required in the question, then the whole solution would effectively contain 25 percent spirit and 75 percent varnish, giving you a hundred percent solution. To express both quantities in ratio can be done as follows;

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