Unit 6 Flashcard 2 Review

Front

What is the formula for the area of a trapezoid?

Back

The area of a trapezoid is given by the formula: \( A = \frac{1}{2} (b_1 + b_2) h \), where \( b_1 \) and \( b_2 \) are the lengths of the two bases and \( h \) is the height.

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is given by the formula: \( A = \frac{1}{2} b h \), where \( b \) is the base and \( h \) is the height.

Front

What is the formula for the area of a parallelogram?

Back

The area of a parallelogram is given by the formula: \( A = b h \), where \( b \) is the base and \( h \) is the height.

Front

How do you calculate the area of a triangle with a base of 10 ft and a height of 7 ft?

Back

Using the formula \( A = \frac{1}{2} b h \): \( A = \frac{1}{2} \times 10 \times 7 = 35 \text{ ft}^2 \).

Front

What is the area of a trapezoid with bases of 5 yd and 7 yd and a height of 4 yd?

Back

Using the formula \( A = \frac{1}{2} (b_1 + b_2) h \): \( A = \frac{1}{2} (5 + 7) \times 4 = 24 \text{ yd}^2 \).

Front

What is the area of a parallelogram with a base of 8 ft and a height of 10 ft?

Back

Using the formula \( A = b h \): \( A = 8 \times 10 = 80 \text{ ft}^2 \).

Front

What is the area of a triangle with a base of 12 yd and a height of 5 yd?

Back

Using the formula \( A = \frac{1}{2} b h \): \( A = \frac{1}{2} \times 12 \times 5 = 30 \text{ yd}^2 \).

Front

If the area of a triangle is 20 ft² and the base is 5 ft, what is the height?

Back

Using the formula \( A = \frac{1}{2} b h \): \( 20 = \frac{1}{2} \times 5 \times h \) leads to \( h = 8 \text{ ft} \).

Front

What is the area of a triangle with an area of 4.7 yd²?

Back

The area is already given as 4.7 yd².

Front

If a parallelogram has an area of 40.5 ft² and a base of 9 ft, what is the height?

Back

Using the formula \( A = b h \): \( 40.5 = 9 \times h \) leads to \( h = 4.5 \text{ ft} \).