Geometry Topic 5 Review

Front

What is the formula for the perimeter of a triangle?

Back

The perimeter of a triangle is the sum of the lengths of its sides: P = a + b + c.

Front

How do you calculate the area of a triangle given its base and height?

Back

Area = 1/2 * base * height.

Front

What are the coordinates of point A in triangle ABC?

Back

A(−4, −3).

Front

What type of triangle has one angle greater than 90 degrees?

Back

An obtuse triangle.

Front

Is it possible for a triangle to be both isosceles and obtuse?

Back

Yes, an isosceles triangle can be obtuse if one of its angles is greater than 90 degrees.

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are less than 90 degrees.

Front

What does it mean for a triangle to be right-angled?

Back

A right triangle has one angle that is exactly 90 degrees.

Front

If a triangle has sides of lengths 5, 12, and 13, what type of triangle is it?

Back

It is a right triangle, as it satisfies the Pythagorean theorem: 5² + 12² = 13².

Front

What is the relationship between the angles in an isosceles triangle?

Back

In an isosceles triangle, the angles opposite the equal sides are equal.

Front

Can a triangle be both obtuse and isosceles?

Back

Yes, a triangle can be both obtuse and isosceles.