App Geom - Area

Front

What is the formula for the area of a rectangle?

Back

A = bh, where A is the area, b is the base, and h is the height.

Front

How do you calculate the area of a circle?

Back

A = πr², where A is the area and r is the radius.

Front

What is the formula for the area of a triangle?

Back

A = (1/2)bh, where A is the area, b is the base, and h is the height.

Front

What is the formula for the area of a trapezoid?

Back

A = (1/2)h(b₁ + b₂), where A is the area, h is the height, and b₁ and b₂ are the lengths of the two parallel sides.

Front

If the base of a rectangle is 10 in and the height is 43 in, what is the area?

Back

A = 10 in * 43 in = 430 in².

Front

If the radius of a circle is 10, what is the area?

Back

A = π(10)² = 100π.

Front

If the base of a triangle is 16 ft and the height is 8 ft, what is the area?

Back

A = (1/2)(16 ft)(8 ft) = 64 ft².

Front

If the height of a trapezoid is 9 m, and the lengths of the bases are 6 m and 9 m, what is the area?

Back

A = (1/2)(9 m)(6 m + 9 m) = 67.5 m².

Front

What is the area of a square with a side length of 5 cm?

Back

A = side² = 5 cm * 5 cm = 25 cm².

Front

What is the area of a parallelogram with a base of 12 m and a height of 5 m?

Back

A = bh = 12 m * 5 m = 60 m².