STAAR Geometry

An angle that measures less than 90 degrees is a...

• obtuse

• acute

• right

A right angle is split into 2 parts. One part measures 60°, what is the other?

• 45 degrees

• 60 degrees

• 30 degrees

• 120 degrees

A triangle has angle measurements of 30°, 70°, and 80°, what type of triangle would this be?

• isosceles

• obtuse

• right

• acute

A triangle has side lengths of 15m, 15m, and 20m, what type of triangle is it?

• scalene

• acute

• isosceles

• equilateral

Amari folded and cut each piece of paper along the dotted lines shown. Which of the following are the shapes of the four new pieces? Choose two.

• triangles

• rhombus

• trapezoids

• squares

What is the measurement of this angle?

• 140 degrees

• 50 degrees

• 40 degrees

• 180 degrees

What is the measurement of this angle?

• 130 degrees

• 60 degrees

• 180 degrees

• 50 degrees

Estimate the measurement of this angle.

• 10 degrees

• 80 degrees

• 150 degrees

• 40 degrees

What kind of angle might measure 160 degrees?

• obtuse

• right

• acute

What type of angle is this?

• Acute

• Obtuse

• Right

• Caboose