Geometry Challenge

What is the sum of the interior angles of a triangle?

A right triangle has legs of lengths 3 cm and 4 cm. What is the length of the hypotenuse?

• 5 cm

• 6 cm

• 7 cm

• 8 cm

A ladder is leaning against a wall, forming a right triangle with the ground. If the ladder is 10 feet long and the base of the ladder is 6 feet from the wall, how high up the wall does the ladder reach?

• 6 feet

• 8 feet

• 10 feet

• 12 feet

If two parallel lines are cut by a transversal, what is the relationship between the alternate interior angles?

• They are complementary.

• They are supplementary.

• They are equal.

• They are right angles.