Using the angle relationships, the sizes of the angles are:
a = 21°
b = 70°
c = 89°
<h3>What are Angle Relationships?</h3>
- Vertical angles are equal in measure.
- Two angles on a straight line are linear pair and are supplementary.
- All angles in a triangle will add up to the sum of 180 degrees.
Thus:
a = 21° (vertical angles).
b = 180 - 110 = 70° (linear pair).
c = 180 - (70 + 21) = 89° (triangle sum)
Therefore, using the angle relationships, the sizes of the angles are:
a = 21°
b = 70°
c = 89°
Learn more about angle relationships on:
brainly.com/question/12591450
Answer:
17
Step-by-step explanation:
a^2 + b^2 = c^2
15^2 + 8^2 = 289
sqrt289 = 17
a triangular prism:):):):):)
Answer:
Option A. 52°
Step-by-step explanation:
From the figure attached,
JEFH is a parallelogram and ΔFGH is a scalene right triangle.
If m∠JEF = 142°
m∠JHF = 142° [Since opposite angles of the parallelogram are equal]
m∠FHG + m∠JHF = 180°
m∠FHG + 142° = 180°
m∠FHG = 180 - 142
= 38°
In the given scalene right triangle FGH,
m∠FHG + m∠HFG + m∠HGF = 180°
38° + m∠HFG + 90° = 180°
m∠HFG = 180° - 128°
m∠HFG = 52°
Option A. will be the answer.