Answer:
1.187.5cm² 2. 144cm² 3 125.6cm²
Step-by-step explanation:
1 multiply the width and the lenght then divide it by 2
2 multiply it by it self
3 multiply the radius by 2 and multiply it by 3.14 (the PI)
1. 187.5 cm²
2. 144 cm²
3. 1256.64 cm²
Solution:
1. Area= a²= a×a
A= 12²= 12cm×12cm
A= 144cm²
2. Area= 1/2×b×h
A= 1/2× 25cm× 15cm
A= 12.5cm× 15cm
A= 187.5 cm²
3. A=πr²
=π•20²
=1256.64cm²
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Answers & Comments
Answer:
1.187.5cm² 2. 144cm² 3 125.6cm²
Step-by-step explanation:
1 multiply the width and the lenght then divide it by 2
2 multiply it by it self
3 multiply the radius by 2 and multiply it by 3.14 (the PI)
1. 187.5 cm²
2. 144 cm²
3. 1256.64 cm²
Solution:
1. Area= a²= a×a
A= 12²= 12cm×12cm
A= 144cm²
2. Area= 1/2×b×h
A= 1/2× 25cm× 15cm
A= 12.5cm× 15cm
A= 187.5 cm²
3. A=πr²
=π•20²
=1256.64cm²