What type of triangle is shown below?
A.) Equiangular
B.) Right Isosceles
C.) Acute Scalene
D.) Obtuse Scalene
Identify the measure of the third angle of the triangle.
Angles of a triangle add up to 180°.
180 - (110 + 28) {subtracted given angles from 180° to determine missing angle}
= 180 - 138 {worked inside parentheses}
= 42 {subtracted}
Angles of triangle are 28°, 42°, and 110°
If no angles are congruent, then none of the sides are congruent. If no sides are congruent, it is scalene.
If an angle is larger than 90°, it is an obtuse triangle.
D.) Obtuse Scalene
Ask Algebra House
Angles of a triangle add up to 180°.
180 - (110 + 28) {subtracted given angles from 180° to determine missing angle}
= 180 - 138 {worked inside parentheses}
= 42 {subtracted}
Angles of triangle are 28°, 42°, and 110°
If no angles are congruent, then none of the sides are congruent. If no sides are congruent, it is scalene.
If an angle is larger than 90°, it is an obtuse triangle.
D.) Obtuse Scalene
Ask Algebra House
