Find the size of the angle marked a and b on the diagram
2 answers:
Answer:
<h2>a = 52°</h2><h2>b = 38°</h2>Step-by-step explanation:
We know:
Angles in a triangle sum to 180°.
Therefore:
52° + 90° + b = 180°
142° + b = 180° |-142°
<h2>b = 38°</h2><em>(look at the picture)</em>
a + b = 90° ⇒ a + 38° = 90° |-38°
<h2>a = 52°</h2>or
Angles 52° and a, are alternate interior angles. Therefore they are congruent.
<h2>a = 52°</h2>
You might be interested in
Answer:
b
Step-by-step explanation:
The volume (V) of a sphere is calculated as
V = πr³ ( where r is the radius )
Here r = 3, thus
V = π × 3³
= π × 27 = 4π × 9 = 36π in³ → b