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A triangular flag let has a base of 30 centimeters and a height of 10 centimeters. How many square centimeters of material were used in making it?
a. 1500cm²
b. 300cm²
c. 40cm²
d. 150cm²


Sagot :

☞[tex] \color{red}answer : [/tex]

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• 300 cm²

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«SOLUTION »

A = πr²

A = 30 cm

A = 10 cm

A = 30 × 10

A = 300 cm ²

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