Find the area of the triangle whose base is 12 cm and height is 4 cm.

A = 24 cm^2

Step-by-step explanation:

The area of a triangle is given by

A = 1/2 bh

A = 1/2 (12)*4

A = 24 cm^2

1/2bh.

1/2×12×4= 1/2×48.

=24cm^2

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answer: d.) the total number of protons and neutrons is 15

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the answer is  

a.

28 ft2

step-by-step explanation: