Angles_HISD4.23_HISD4.24

Match

Match the following pictures with the vocabulary word.

Acute angle

Right angle

Obtuse angle

Straight angle

• Acute angle

• Right angle

• Obtuse angle

• Straight angle

Multiple Choice

A right triangle is a triangle that has three angles that can measure less 90°.

• Fact

• Fib

Multiple Choice

An obtuse triangle is a triangle that has exactly one angle that can measure 101°.

• Fact

• Fib

Multiple Choice

An acute triangle is a triangle that has exactly two angles that can measure less than 90°.

• Fact

• Fib

Multiple Choice

Which image appears to be a right triangle? 

Multiple Choice

What is the measure of angle DEF to the nearest degree?

• 75°

• 65°

• 181°

• 171°

Multiple Choice

Which type of triangle has an angle that measures greater than  90°?

• An obtuse triangle

• An acute triangle

• A right triangle

• None of these

Dropdown

A triangle has exactly one right angle.

Is the triangle a right, acute, or obtuse triangle?

Complete the sentence by using the drop-down menu.

The triangle is

Select answer

because it has exactly ​ ​

Select answer

.

Math Response

What is the measure of angle DBA to the nearest degree?

Type answer here

Correct Answer: 145

Deg^°

Rad

Drag and Drop

A triangle has exactly one obtuse angle.

Is the triangle a right, acute, or obtuse triangle?

The triangle is

Placeholder

because it has exactly ​

Placeholder

.

Drag these tiles and drop them in the correct blank above

obtuse

one obtuse angle

right

acute

one right angle

one acute angle

Math Response

Angle ADC is a right angle. Angle ADB measures 57 degrees.

What is the measure of angle BDC?

Type answer here

Correct Answer: 33

Deg^°

Rad

Math Response

Angle PRQ and angle QRS are supplementary angles. The measure of angle PRQ is 50 degrees.

What is the measure in degrees of angle QRS?

Type answer here

Correct Answer: 130

Deg^°

Rad

Multiple Choice

The measures of angles LKM and MKN are shown in the diagram. What is the measure of angle LKN?

• 17 degrees

• 70 degrees

• 51 degrees

• 61 degrees