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A. Find the area of the following figures. Be sure to use the correct unit of measurement.
1. square with 5cm side
2. triangle with a height of 8cm and a base of 8cm
3. rectangle with a length of 14cm and a width of 7cm
4. a circle with a diameter of 6cm
5. a semicircle with a radius of 5cm​

Pa help po pls pls


Sagot :

Answer:

1. A = a²

A = 5²

A = 25 cm²

2. A = bh/2

A = (8)(8)/2

A = 64/2

A = 32 cm²

3. A = l x w

A = 14 x 7

A = 98 cm²

4. A = πd²/4

A = (3.14)(6)²/4

A = 113.04/4

A = 28.27 cm²

5. A = πr²/2

A = (3.14)(5)²/2

A = 78.5/2

A = 39.27 cm²