2ND 9 WEEKS REVIEW

Front

What is a cross-section?

Back

A cross-section is the intersection of a solid object with a plane, resulting in a 2-dimensional shape.

Front

What shape is formed when a pyramid is sliced by a plane?

Back

A triangle can be formed as a cross-section when a pyramid is sliced by a plane.

Front

How can the area of a region be approximated using geometric shapes?

Back

The area of a region can be approximated by fitting a geometric shape, like a rectangle, around it and calculating the area of that shape.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

If x - 16 = 8, what is the value of x?

Back

x = 24.

Front

What is the value of 3(x + 7) if x = 24?

Back

72.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in a triangle is always 180 degrees.

Front

If one angle of a triangle is 40 degrees and another is 70 degrees, what is the third angle?

Back

The third angle is 70 degrees (180 - 40 - 70 = 70).

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring 90 degrees.

Front

What is the definition of a pyramid?

Back

A pyramid is a three-dimensional shape with a polygonal base and triangular faces that meet at a common point (the apex).