Question

Look at the four triangles below.

Which option shows the triangles correctly classified by their sides and by their angle measures?

A)By Side
1, 2, and 4 are scalene triangles because each has all three sides of different lengths.

By Angle
1 and 3 are right triangles because each has one angle that measures 90˚.

B)
By Side
All are scalene triangles because in all the triangles all three sides are of different lengths.

By Angle
1, 3, and 4 are obtuse triangles because they each have an angle that measures 90˚ or greater than 90˚.

Answer 1

C)By Side
1, 2, and 4 are scalene triangles because each triangle has three sides of different lengths.

By Angle
All are acute triangles because each has at least two angles that measure less than 90˚.

D)By Side
1 is a scalene triangle because it has two congruent sides.

By Angle
1 and 3 are right triangles because one of their angles measures 90˚.

Answer 2

Right angle: 90˚
Obtuse angle: MORE than 90˚
Acute angle: LESS than 90˚

Scalene triangle - all sides have DIFFERENT measures
Isocselese triangle - TWO sides have equal measures
Equilateral triangle - all sides are the same measure.

Answer 3

Obtuse triangle - ONE obstuse angle.
Acute triangle - ALL angles are acute.
Right triangle - ONE right angle.

Answer 4

soo the answer is....

Answer 5

Check each choice. You don't have to go very far to find the answer...

Option A)
By Side: 1, 2, and 4 are scalene triangles because each has all three sides of different lengths. <------------Is this true?

By Angle: 1 and 3 are right triangles because each has one angle that measures 90˚.<---------Is this true?