4th Grade Angles/ Triangles

Angles

100

What is a 90^o angle called? 

A right angle

200

What is an angle that is larger than 90^o?

An obtuse angle

300

What is an angle that is smaller than 90^o?

An acute angle

400

What angle measures 180^o?

Straight angle

500

What is the measurement of a complete circle? 

360^o

Finding Angles

100

2 angles together make a straight line. If one angle is 35^o what is the measure of the other angle? 

180-35= 145^o

200

Two angles together form a larger angle. One smaller angle is 35^o and the other angle is 62^o. What is the measurement of the larger angle formed?

62+35= 97^o

300

Two angles form a right angle. One of the smaller angles measures 23^o. What does the other small angle measure? 

90-23= 67^o

400

2 angles together form a larger angle. One of the small angles measures 73^o. The other one measures 102^o. What is the measure of the larger angle? 

73+102= 175^o

500

If two angles create a straight line, what is the degree of the large angle? 

180^o

Triangle Classification

100

What kind of triangle has 3 equal sides and angles? 

Equilateral Triangle

200

What type of triangle has no equal sides or angles? 

Scalene Triangles

300

If a triangle has two angles that measure 35^o and one angle that measures 110^o, what kind of triangle would it be? 

an obtuse, isosceles triangle

400

If a triangle has 3 sides measuring 15 inches, what kind of triangle would it be? 

equilateral

500

If a triangle has one side that is 10 inches, one side that is 5 inches, and one side that is 16 inches, what kind of triangle would it be? 

a scalene triangle

Triangle Classification

100

If a triangle has a 90^o angle, what kind of triangle is it? 

A right triangle

200

If a triangle has 3 angles all less than 90^o what is it called? 

an acute triangle

300

If a triangle has one angle larger than 90^o what kind of triangle is it? 

obtuse

400

What kind of triangle has an angle that measures 102^o?

Obtuse

500

If one angle of a triangle measures 13^o, another angle measures 28^o, and the third measures 58^o, what kind of triangle is it? 

acute

Extra

100

What is the measurement of a right angle? 

90^o

200

What is the measurement of an acute angle? 

less than 90^o

300

What is the measurement of an obtuse angle? 

more than 90^o

400

What is the measurement of a straight angle? 

180^o

500

What fraction of a turn is 360^o?

A full circle/ turn