Question

1.)
a = ½ (b)(a) =
2.)
a =
3.)
a =
4.)
a =
5.)
a =
6.)
a =

Explanation:

1. Calculate the area of the first triangle

The formula for the area of a triangle is \(A=\frac{1}{2}(b)(h)\). Here, \(b = 12\) in and \(h=6\) in.

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2. Calculate the area of the second triangle

For the second triangle, \(b = 4.5\) m and \(h = 2\) m.

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3. Calculate the area of the third triangle

For the third triangle, \(b = 4\) yd and \(h = 5\) yd.

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4. Calculate the area of the fourth triangle

For the fourth triangle, \(b = 4\) ft and \(h = 3\) ft.

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5. Calculate the area of the fifth triangle

For the fifth triangle, \(b = 5\) in and \(h = 5\) in.

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6. Calculate the area of the sixth triangle

For the sixth triangle, \(b = 10\) cm and \(h=4\frac{1}{2}=\frac{9}{2}\) cm.

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Answer:

1. \(36\) square inches
2. \(4.5\) square meters
3. \(10\) square yards
4. \(6\) square feet
5. \(12.5\) square inches
6. \(22.5\) square centimeters